@ngjb
Thanks for all the information,
From your description I thought it might be a memory leak with your hardware because it don't refreshes itself at you. Due to placement of the page file???

It is no bug in the program because with me 4K rendering with fx's and 4 T&T 's goes with very steady memory use. Look at the video I made of it. It speaks for itself and mind the use of memory , all on my laptop from signature:

VEGAS 18 min requirements state that, for 4K projects, you are recommended to have 32GB of RAM, so that's one possible cause. Your desktop hardware is especially dated for 4K, especially the GPU.

That said, the memory should be clearing itself out after the render. I'll see if I can recreate this on my end.

My laptop hardware is just over a year old and has the same issue but it occurs much faster. I will eventually upgrade my desktop, but it won't solve this problem. The sample project I created really doesn't need that much memory. I can can reproduce the problem with just one clip and multiple titles over that clip. If I take the titles away, the rendering completes with no issues whatsoever.

@ngjb
Thanks for all the information,
From your description I thought it might be a memory leak with your hardware because it don't refreshes itself at you. Due to placement of the page file???

It is no bug in the program because with me 4K rendering with fx's and 4 T&T 's goes with very steady memory use. Look at the video I made of it. It speaks for itself and mind the use of memory , all on my laptop from signature:

Thanks for helping out. The page file (pagefile.sys) is on my C: drive (SSD) on both computers. The one big difference is the media your are using. If it's from a Gopro, it does not record at the same bit rates as the Panasonic cameras. Also your frame rates are not the same as mine. I'm using NTSC standards. That could be part of the problem. As shown in my video, when I render without the titles, the memory usage is stable. When I add the titles in, the memory leak occurs.

If it's from a Gopro, it does not record at the same bit rates as the Panasonic cameras.

It is not, it are AVC files of my DJI pocket, with the MediaInfo

Bitrate is 100MB/s, that's pretty high, but if you provide on a cloudservice, so we are able to download it, one of your sourcefiles and your .veg that won't render, we can test it on our installations.

If it's from a Gopro, it does not record at the same bit rates as the Panasonic cameras.

It is not, it are AVC files of my DJI pocket, with the MediaInfo

Bitrate is 100MB/s, that's pretty high, but if you provide on a cloudservice, so we are able to download it, one of your sourcefiles and your .veg that won't render, we can test it on our installations.

I tried the same test using 4K30 MP4 files recorded at 100 Mbps with a Yi 4K action camera and had no issues rendering with titles. The files are much smaller than those generated by my Panasonic camera. Even though it records at 100 Mbps it uses a different codec for compression. I'll update my problem description to mention that the issue is limited to media from Panasonic Lumix cameras.

I don't have any G9 files (have some G85 but not sure if that's the same, it doesn't do 10 bit)- if you could make such a file and project available that shows the memory leak I'm happy to test it.

In the past when we did that and demonstrated problems the developers were able to use that info to troubleshoot.

I don't have any G9 files (have some G85 but not sure if that's the same, it doesn't do 10 bit)- if you could make such a file and project available that shows the memory leak I'm happy to test it.

In the past when we did that and demonstrated problems the developers were able to use that info to troubleshoot.

Here is a link to the archive containing a single clip recorded with my Lumix G9 (4K30 10 bit 422 at 150Mbps) and the Vegas 18 project file that does some minor color correction and places four titles over the clip. It hangs up consistently on both my computers (AMD and Intel) with the same version of Vegas 18. The memory utilization rises as it renders the titles. If I remove the titles, the rendering completes and the memory utilization is stable. If I render the same 4K media as a 1080 30P video, it completes with no issues and the memory utilization is stable. Let me know if you get similar results. Thanks...

https://drive.google.com/file/d/1OFSINLvPOCWTm51g8cr1mvzCDTa7Epn1/view?usp=sharing

If it's from a Gopro, it does not record at the same bit rates as the Panasonic cameras.

It is not, it are AVC files of my DJI pocket, with the MediaInfo

Bitrate is 100MB/s, that's pretty high, but if you provide on a cloudservice, so we are able to download it, one of your sourcefiles and your .veg that won't render, we can test it on our installations.

Here is a link to the archive containing a single clip recorded with my Lumix G9 (4K30 10 bit 422 at 150Mbps) and the Vegas 18 project file that does some minor color correction and places four titles over the clip. It hangs up consistently on both my computers (AMD and Intel) with the same version of Vegas 18. The memory utilization rises as it renders the titles. If I remove the titles, the rendering completes and the memory utilization is stable. If I render the same 4K media as a 1080 30P video, it completes with no issues and the memory utilization is stable. Let me know if you get similar results. Thanks...

https://drive.google.com/file/d/1OFSINLvPOCWTm51g8cr1mvzCDTa7Epn1/view?usp=sharing

FYI Here is the MediaInfo for this file. I'm doing the test now.

Format                         : MPEG-4
Format profile                 : QuickTime
Codec ID                       : qt   2011.07 (qt  /pana)
File size                      : 642 MiB
Duration                       : 35 s 35 ms
Overall bit rate mode          : Variable
Overall bit rate               : 154 Mb/s
Encoded date                   : UTC 2020-08-27 07:49:31
Tagged date                    : UTC 2020-08-27 07:49:31

Video
ID                             : 1
Format                         : AVC
Format/Info                    : Advanced Video Codec
Format profile                 : High 4:2:2@L5.1
Format settings                : CABAC / 1 Ref Frames
Format settings, CABAC         : Yes
Format settings, Reference fra : 1 frame
Format settings, GOP           : M=1, N=15
Codec ID                       : avc1
Codec ID/Info                  : Advanced Video Coding
Duration                       : 35 s 35 ms
Bit rate mode                  : Variable
Bit rate                       : 150 Mb/s
Maximum bit rate               : 180 Mb/s
Width                          : 3 840 pixels
Height                         : 2 160 pixels
Display aspect ratio           : 16:9
Frame rate mode                : Constant
Frame rate                     : 29.970 (30000/1001) FPS
Standard                       : Component
Color space                    : YUV
Chroma subsampling             : 4:2:2
Bit depth                      : 10 bits
Scan type                      : Progressive
Bits/(Pixel*Frame)             : 0.602
Stream size                    : 625 MiB (97%)
Encoded date                   : UTC 2020-08-27 07:49:31
Tagged date                    : UTC 2020-08-27 07:49:31
Color range                    : Limited
Color primaries                : BT.709
Transfer characteristics       : BT.709
Matrix coefficients            : BT.709
Codec configuration box        : avcC

Audio
ID                             : 2
Format                         : PCM
Format settings                : Big / Signed
Codec ID                       : twos
Duration                       : 35 s 35 ms
Bit rate mode                  : Constant
Bit rate                       : 1 536 kb/s
Channel(s)                     : 2 channels
Channel layout                 : L R
Sampling rate                  : 48.0 kHz
Bit depth                      : 16 bits
Stream size                    : 6.42 MiB (1%)
Encoded date                   : UTC 2020-08-27 07:49:31
Tagged date                    : UTC 2020-08-27 07:49:31

I can confirm this. Ram usage continually increases and then Vegas stops rendering with an error. It appears to be a like as when I closed my browser (freeing up ram) and tried to do the render again it gave the memory error just after starting.



My system is in my signature (Intel i7700, 32GB ram)

I can confirm this. Ram usage continually increases and then Vegas stops rendering with an error. It appears to be a like as when I closed my browser (freeing up ram) and tried to do the render again it gave the memory error just after starting.



My system is in my signature (Intel i7700, 32GB ram)

Thanks for all your effort in confirming this problem. That makes three different systems (two of mine) that can reproduce this problem. I believe Magix has enough information including the media and steps required to reproduce the problem. If I had the source code and project files for Vegas 18 Pro, I could probably debug it pretty quickly. I'm willing to bet that the cause of this memory leak is the root of many rendering issues that other people are reporting.

@ngjb I think the engineers are away for winter holidays now but hopefully we can get their attention to this in the new year.

I wonder if it's a text plus 10-bit footage in 32-bit video mode issue? In 8-bit I'd think it would have been found by now given how many of us do text captions and 4K footage.

I'm pretty sure it isn't, as I edit almost exclusively 10 bit footage, some that ends up in HDR, so I imagine I would have come across that by now, but I'm going to do tests tomorrow to find out.

@ngjb I think the engineers are away for winter holidays now but hopefully we can get their attention to this in the new year.

I wonder if it's a text plus 10-bit footage in 32-bit mode issue? In 8-bit I'd think it would have been found by now given how many of us do text captions and 4K footage.

"Away for the winter holidays"? Where would they go? To the supermarket and back?

It will also fail with 8 bit color footage recorded with Panasonic Lumix cameras such as the G7, G9, and GH5. I have a Lumix G7 also. The problem was not present in version 14. For whatever reason, 4K footage from my Yi 4K action camera does not cause this problem.

No problem playing in full preview, rendering and playing the rendered file with the veg plus file from @ngjb on my laptop from signature with VPro 18, all important settings and options at default, look

No problem playing in full preview, rendering and playing the rendered file with the veg plus file from @ngjb on my laptop from signature with VPro 18, all important settings and options at default, look

Thanks for looking into this. One difference I do notice you memory utilization is already high when you started the rendering (you may have had other applications running plus mine) and it did increase as each title was rendered. But it was not enough to crash during rendering. Also it doesn't look like your GPU was not used during the rendering given the CPU load. Is your GPU disabled in your preferences?

Thanks for looking into this. One difference I do notice you memory utilization is already high when you started the rendering (you may have had other applications running plus mine) and it did increase as each title was rendered. But it was not enough to crash during rendering. Also it doesn't look like your GPU was not used during the rendering given the CPU load. Is your GPU disabled in your preferences?

What did you think of memory use for making that screenvideo with a third party program at the same time as your project that I didnot render with NVENC but with QSV ( of the Intel)
Rendering with Nvenc should have given other figures at those shown tasks.
Look here rendering your project to the same rendertemplate, but now with the help of the Nvidia GPU

And this is 3 times your project with a total of 12 titles rendered again with that template with QSV

Thanks for looking into this. One difference I do notice you memory utilization is already high when you started the rendering (you may have had other applications running plus mine) and it did increase as each title was rendered. But it was not enough to crash during rendering. Also it doesn't look like your GPU was not used during the rendering given the CPU load. Is your GPU disabled in your preferences?

What did you think of memory use for making that screenvideo with a third party program at the same time as your project that I didnot render with NVENC but with QSV ( of the Intel)
Rendering with Nvenc should have given other figures at those shown tasks.
Look here rendering your project to the same rendertemplate, but now with the help of the Nvidia GPU

And this is 3 times your project with a total of 12 titles rendered again with that template with QSV

Thanks again. Could you please send me a screen shot of you general, video, deprecated features preferences. Attached are mine from my Intel Laptop with NVIDIA graphics. I want to see what differences there are between my Vegas settings and yours.

Of course, with pleasure, here are the wanted and the most important ones

and here the driverversions for both used GPU's

Of course, with pleasure, here are the wanted and the most important ones

and here the driverversions for both used GPU's

Thanks... On my AMD desktop system, in the Deprecated Features option, I checked "Enable Protype Titler" and "Enable Legacy Text". I then created four titles with the Protype Titler and rendered the video. As you can see from the attached video there is no memory leak. The memory utilization remains constant. The GPU loading is High (about 99%) during rendering and the CPU load is around 50% on average. The render completes without any issues. I still have the same rendering hang-up issue when using the new Titles & Text. I will test the new settings on my Intel Laptop. I can pretty much replicate all your settings on my laptop.

I can confirm this. Ram usage continually increases and then Vegas stops rendering with an error. It appears to be a like as when I closed my browser (freeing up ram) and tried to do the render again it gave the memory error just after starting.



My system is in my signature (Intel i7700, 32GB ram)

Thanks for all your effort in confirming this problem. That makes three different systems (two of mine) that can reproduce this problem. I believe Magix has enough information including the media and steps required to reproduce the problem. If I had the source code and project files for Vegas 18 Pro, I could probably debug it pretty quickly. I'm willing to bet that the cause of this memory leak is the root of many rendering issues that other people are reporting.

You may want to confirm also that if you enable the legacy Pro Type Titler and Legacy Text, and then create four titles (with Pro Type Titler) over the media I provided instead of using the new Titles & Text feature, and then render the video using the same settings that there is no memory leak and that the render completes without issues. This will confirm that the problem is isolated to the new Titles & Text function

Glad that the old Protype Titler works with you but a pity that T&T does not work, but it works well with me. So it is a maybe a bug with you but not in the program as I proved more than 1 time.