Just so you all know that the problems with the slowdown are not falling on deaf ears, we on the VEGAS team are trying very hard to uncover this slow down some of you are seeing in VEGAS 15. The main reason we have not been able to remedy this is mainly because we are having a difficult time reproducing the issue here. I would like to thank all the people who have posted details about what specifically they are seeing and what they are doing to reproduce the problem. The more specific details we get, the more likely we will be able to narrow down the cause of this problem. It is my hope that we will be able to find a solution to this problem in the near future.

How to reproduce the perfomance problem... sluggish perfomance ON/OFF steps:

1. test with about 200gb of DSLR/MIRORLESS footage imported in youd media bins

1. disable so4compoundplug from internal menu an restart vegas -> now everthing is lightning fast, project loading time is a split second, trimmer and timeline playback perfomance is beautifull and thumbnails on your 'media bins' folders update in a blink of an eye.

2. enable so4compoundplug from internal menu and restart vegas -> now everthing i was talking before works tens times worst. Vegas becomes a very slow and hard to work with NLE.

So, vegas is awesome first of all because is fast....so4 makes it dead slow....If i wasn't able to disable so4compoundplug i woud have quit vegas and go for another nle. And trust me i love vegas and i edit in vegas for a very long time.

@ion-marin What format is your footage and what camera did you shoot it with?

Just so you all know that the problems with the slowdown are not falling on deaf ears, we on the VEGAS team are trying very hard to uncover this slow down some of you are seeing in VEGAS 15. The main reason we have not been able to remedy this is mainly because we are having a difficult time reproducing the issue here. I would like to thank all the people who have posted details about what specifically they are seeing and what they are doing to reproduce the problem. The more specific details we get, the more likely we will be able to narrow down the cause of this problem. It is my hope that we will be able to find a solution to this problem in the near future.

How to reproduce the perfomance problem... sluggish perfomance ON/OFF steps:

1. test with about 200gb of DSLR/MIRORLESS footage imported in youd media bins

1. disable so4compoundplug from internal menu an restart vegas -> now everthing is lightning fast, project loading time is a split second, trimmer and timeline playback perfomance is beautifull and thumbnails on your 'media bins' folders update in a blink of an eye.

2. enable so4compoundplug from internal menu and restart vegas -> now everthing i was talking before works tens times worst. Vegas becomes a very slow and hard to work with NLE.

So, vegas is awesome first of all because is fast....so4 makes it dead slow....If i wasn't able to disable so4compoundplug i woud have quit vegas and go for another nle. And trust me i love vegas and i edit in vegas for a very long time.

@ion-marin What format is your footage and what camera did you shoot it with?

I shoot with Panasonic Gh5 or Canon Mk3. So my footage is HD 1920x1080, interframe, 8bit, 25p, mp4, 100mbps for panasonic or 25 mbps for canon. But realy, i don't think it matter what footage you have. I've been editing in vegas since 2009 and i realy know my way around vegas, so4compoundplug (excuse my language) realy sucks.

I shoot with Panasonic Gh5 or Canon Mk3. So my footage is HD 1920x1080, interframe, 8bit, 25p, mp4, 100mbps for panasonic or 25 mbps for canon. But realy, i don't think it matter what footage you have. I've been editing in vegas since 2009 and i realy know my way around vegas, so4compoundplug (excuse my language) realy sucks.

@ion-marin I assume you mean the Canon 5D Mk3. It's not normal for footage from that camera or the Panasonic GH5 to be "tens of times faster and sharper" with compoundplug than with so4compoundplug. It is known that thumbnails build more slowly. Once thumbnails have finished rendering, UHD footage from my Panasonic GH4 plays at 29.97 at Best (Full), even with GPU acceleration of video processing OFF.

What are the specifications of your machine? (CPU, GPU, RAM)

Is GPU acceleration of video processing ON or OFF?

Could you share sample files from each camera on a cloud service (e.g. on Dropbox, Google Drive, OneDrive, mega.nz, wetransfer.com or mediafire.com) for others, including the developers, to test?

Sony A7s footage is sluggish with or with out the so4 compoundplug. It is very fast at loading though as said when it is off. My footage is on a raid drive for what it is worth. But the free promo edit that appears on the timeline when you first open the trial was as sluggish as well upon playback with or without so4.

Sony A7s footage is sluggish with or with out the so4 compoundplug.

I assume the A7s using XAVC-S codec? (not AVCHD)

I shoot with Panasonic Gh5 or Canon Mk3. So my footage is HD 1920x1080, interframe, 8bit, 25p, mp4, 100mbps for panasonic or 25 mbps for canon. But realy, i don't think it matter what footage you have. I've been editing in vegas since 2009 and i realy know my way around vegas, so4compoundplug (excuse my language) realy sucks.

@ion-marin I assume you mean the Canon 5D Mk3. It's not normal for footage from that camera or the Panasonic GH5 to be "tens of times faster and sharper" with compoundplug than with so4compoundplug. It is known that thumbnails build more slowly. Once thumbnails have finished rendering, UHD footage from my Panasonic GH4 plays at 29.97 at Best (Full), even with GPU acceleration of video processing OFF.

What are the specifications of your machine? (CPU, GPU, RAM)

Is GPU acceleration of video processing ON or OFF?

Could you share sample files from each camera on a cloud service (e.g. on Dropbox, Google Drive, OneDrive, mega.nz, wetransfer.com or mediafire.com) for others, including the developers, to test?

Thank you for your feedback! I have different workstations and with all i have experiencing the same problems, all the time.

My machines are:

1. Intel 2600k with 8gb ram, gpu nvidia gtx 1080ti., different workstation grade hdd and sdd. windows 10

2. Intel 4790k with 32gb gb ram, gpu Nvidia gtx 580, different workstation grade hdd and sdd.windows 10

3. Intel 5960x with 32gb ram, gpu nvidia 1080ti, different workstation grade hdd and sdd.windows 10

With Gpu acceleration on, playback is better when playing back color graded footage but often it is very unstable to use, causing frequent crashes on all workstations.

I can provide sample files with no problem, but they are realy just like any footage anyone has from their dslr or mirrorles cameras. As i mention before on the Panasonic Gh5, i only shoot the most basic HD footage, 8bit, interframe 25p, 100mbps.

Like i said, scrubbing in the trimmer window is a real pain, especialy if you are scrubbing a long take (like 5 min long), and the timeline preview is not great also. When disabling So4compoundplug, everything is much more faster and better. Frankly so4compoundplug only helps if importing 10bit footage (wich i rearely do) but make everything else worse.

I am a very experienced user and i am just saying this to let you know that i realy know my way aroud hardware and vegas. For many years now I, along with other videographers in my community, have done dozens and dozens of tests trying to figure out which hardware is causing errors, which works best in vegas and which are more stable. We even have a list of benchmarks with different harware. (i even have posted some bugs that we found on this forum, with no avail). After this had been said, i can assure you that it is not the hardware that is causing problems. It is the software.

I know you won't even consider this right now due to all the problems you have with current vegas build but you need a plugin health checker. Something that can detect if something is faulty with plugins or the plugin,ofx interconnection becomes broken by badly written plugins.

For the first time ever I've completely given up using vegas because plugins have broken vegas. I've uninstalled vegas15 twice, uninstalled plugins multiple times, as well as nvidia drivers (using a know good version), as well as reinstalling 1 at a time. The problem I see time and time again is gtx 1070 only using 6% gpu, while intel630 gpu uses about 22% & cpu use is ridiculously high. I change in preferences gpu used for graphic processing to intel630 & everything works much better & cpu use is 1/2. Interestingly intel630 gpu remains at 22%

If I didn't have an expensive graphic card I'd be happy right now, but inability to use it after so many years of using it has stopped me using vegas all together.

TLDR: Incorporate a plugin & OFX health monitor that detects problems & prevents problem plugins ruining performance of vegas. I know there's something broken with my vegas & plugins/plugins interface, but I think Vegas should detect & give me specifics

I have now disabled intel 630 GPU in my Bios, and driving both monitors exclusively through the nVidia 1060. I thought utilizing both is not really helping the situation at hand..maybe give that a try also @Former user and see how you go (seems that your setup is somewhat similar..)

Can somebody please explain to me what are the benefits of SO4 in comparison to old compoundplug?

I see there is much trouble keeping that enabled.

EDIT: BTW I am facing app crash while rendering for export again.

Can somebody please explain to me what are the benefits of SO4 in comparison to old compoundplug?

I see there is much trouble keeping that enabled.

https://www.vegascreativesoftware.info/us/forum/new-avc-xavc-s-issues-in-vp15-try-disabling-so4compoundplug-dll--108345/

The benefit is explained here

Hi everyone, I promised to get proper package with everything ready to MAGIX. I am still working on it as it's heavily time consuming and I need to work :(. I tried to prepare at least something for @VEGAS_CommunityManager and @VEGASDerek to see. Please, look at the footage below I was able to record on monday and how awful the stability is. I was just editing GH5 footage I recorded. In first 2 minutes, I've got the UI slowdown / crop flicker. In 5 minutes I've got the crash of entire application. No fx. No proxy. One mp4 file from GH5 (see details below). No plugins except "Wave Hammer". In the video you will see my project settings, VEGAS settings and also details about my computer. You can see reproduction of the problem in video here:

See the video close to the end at 4:30 !!!

That's not a stable experience at all. This is just beginning. More time you stay in editing, the crashes are becoming more frequent. I believe I am not alone here with this problem.

Used file information:

And here, you can see the weird thing of reproduction of rendering bug on final video.

I just select what I need to render. Pressed the render as, choose the MAGIX MP4 - the render starts. After some initial frames, the preview just hang on for whole 1 and half hour - after that it hangs on 91% of rendering - with just estimated time of 00:00:00 to finish. It was needed to KILL the process from Task Manager to just try second render.

You can also see in the video the utilization of CPU and GPU. Why the VEGAS is using just 14% during rendering of my 20 logical processors is first warning sign.

The second weird thing, if this export settings is using NVENC, why it's just 18% of utilization of GPU? When I am exporting something using Adobe Media Encoder, utilization of both, CPU and GPU is at least 75%.

So ... what to do from here?

PS: Here is the final render after 2x 4 HOURS rendering of 2:48 long video!

That's really bad result by the way. When I was producing this show in Full HD mode, I was able to render it under 4 minutes with same plugins on much older PC than is this i9 machine. Or is this formula like if I am using 4K it means here 4 minutes x 60 minutes on top?

Thank you.

It's interesting that when the edit hung, there was CPU being used. I also observe this in my test which I submitted yesterday to Magix:

yes, the longer i stay in, editing, the slower things get before locking up. On the exact same machine, 13 and 14 don't do this.

@Fiola Thank you for taking the time. I forwarded your feedback and will be discussed within the VEGAS team.

@wilri001 your 1-hour video is a little lengthy. Do you have a time stamp for the appearance of your issue?
Edit: Alright, understood. Thank you for explaining it.

Wilri001. This is exactly what I get. Notice that when your cut video files go from one scene to another how the scene it is leaving has a stutter freeze then the next cut starts? That is what I see always. Never a smooth transition from one scene to the next upon playback. Very difficult to work like this. Crazy that it is only on a simple edit as well with no fx. Footage is xavc and tried on avc as well.

@wilri001 I have this GUI-delay when creating a slideshow. It is regardless of the source material or the number of clips, etc. Only the total of redrawed windows seems to play a role. If I close all the tabs and windows of Vegas, so that only the timeline is visible, and then set the default window layout again, it runs again as in the beginning.

That makes sense. It’s as if the event listeners for the old windows aren’t being freed, so any event has to search a long list of possible events.

Thank you, everyone, for the information and the specific details. With this information, we have identified some resource leaks that are likely causing the problems being seen with the reported UI slowdown. We are working very hard on fixing this and will have this go through our QA process with hopes of getting an update out quickly.

Again, thank you for everyone's support in helping us try to identify this problem.

I currently just bought Vegas Pro 15 Build 261 and loaded it on my desktop. Is it worth upgrading to Build 311 and can I load it on top of Build 261?

I currently just bought Vegas Pro 15 Build 261 and loaded it on my desktop. Is it worth upgrading to Build 311 and can I load it on top of Build 261?

@MikeTe If you already have VP15 then build 311 is just an "update" by conventional terminology, not an "upgrade". You should install it and yes, you can load it on top of build 261 and it will overwrite what it needs to.

I created an account here in the forum to thank and in case I need some help in the future (I believe I'll need it, so I already have an account created)
Firstly, thank you very much for this amazing software, it has everything I need, I confess I did a test with Premiere for a long time, very heavy for my simple laptop (6GB of RAM, and no video card, so issues in Premiere are very slow, for rendering becomes almost impossible to do other things)
So I started messing with Vegas, I saw a lot of tutorials, so I was able to adapt very fast, I'm still learning, Vegas runs perfectly on my laptop, very fast rendering, all very nice, thank you so much!
My native language is Portuguese, I had a lot of help from Google Translate, so I hope this is not confusing.

Please forgive me if this has already been talked about.

I have a 7 minute 4K UHD project on the timeline. System RAM usage for Vegas is 9.5GB. I want to start a new project. I go to File>New., click OK on Project settings. I look at RAM usage, it is still at 9.5GB.

Is this normal behavior? When I exit the program and start with a "clean slate", Vegas RAM usage is 250MB.

Am I doing something wrong?

Updated to 311..... I honestly don't remember RAM usage for my 4K project being this high.... the project is 7 minutes, no fx, just simple dissolve transitions and one title.