Vegas Pro 14 Bugs - Video Clips Randomly Missing

digfish wrote on 10/1/2016, 9:26 PM

Hi, where do we report bugs?

I started my first major project with it last week and I am seeing renders randomly dropping sections of the video (that is some clips) render to black. Audio still works for those sections.

The dropped clips will randomly (it seems) vary from render to render. To get a good video I need to restart Vegas and re-render with my fingers crossed. I have seen this sort of bug before in Vegas 8 through 12 (from time to time) but it is usually solved with one of the updates. 13 was very good in this regard.  

Also a long standing Vegas bug is here, that is the start of clips sometimes include a snippet of audio from the end of the clip, so you need to mute the start. 

Here is a draft of the project so you can get some idea of the nature of the project. 

Regards Scott

Comments

NickHope wrote on 10/1/2016, 9:53 PM

If you are getting black frames on the timeline or in the render, try restarting Vegas immediately before rendering, and don't do anything else before rendering. That's the only thing that's ever helped me with them.

Submit bug reports at https://support2.magix.com/customer/en/vegas/form

digfish wrote on 10/1/2016, 10:03 PM

Thanks, as I noted in my report, that is exactly what I am doing. 

BTW I just tried to submit a bug-report and the system responds: "Unfortunately there was an error during sending your request, please try again later."

 

 

Musicvid wrote on 10/2/2016, 2:35 PM

Two things --

-- Be sure to have Quantize to Frames and Snapping turned on before adding ANY media to the timeline.

-- Try a render with all GPU in Vegas turned off.

digfish wrote on 10/2/2016, 7:42 PM

Thanks.

I always render without GPU acceletation, this has been the source of too many bugs over the years.

Options > Quantize to frames, Enable snapping & Snap to grid are all on.

Regards Scott

 

NickHope wrote on 10/2/2016, 9:21 PM

This problem has been around for a very long time. It used to be particularly common with Cineform media, but I've seen it with other formats too, mostly VFW formats. In 2011 support said "Usually when a clip goes blank on the timeline it is the result of anti virus applications or other security software disallowing the script pointer which connects the event to the actual media on the hard drive." I used to experience the problem in those days when I was using AVG Free anti-virus software. These days I don't see the problem and I'm only using Windows Defender. So there might be a link there. In an earlier comment on that post, support advised Serena to narrow down the problem by disabling all startup applications and background services, then re-enabling them one by one. One user said that worked.

There was further discussion with regard to this problem at https://www.vegascreativesoftware.info/us/forum/cineform-files-vanish--88554/

digifish, what format video is giving this problem? What anti-virus software do you use?

digfish wrote on 10/2/2016, 9:50 PM

digifish, what format video is giving this problem? What anti-virus software do you use?

Thanks, yes I am aware this is a long-standing issue, as I noted I have seen this back from Vegas 8. That said, Vegas 13 was free of this issue (as far as I can remember).  

I have been using Vegas since about 5 and upgraded to every edition except 12, skipped that one.

I use only Windows 10 + Defender and the video is encoded with the TechSmith Screen Capture Codec - https://www.techsmith.com/codecs.html

I also work for a software company, so understand how complex these sorts of bugs can be. But this one, has been around for the longest time. Along with the first-frame audio containing last-frame audio issue.

I am really pleased to see Magix get their hands on Vegas (I was in the process of converting to DaVinci Resolve when 14 was announced). Lets see where they can take it.

 

Paul-Fierlinger wrote on 10/4/2016, 3:07 PM

I've seen this once or twice in 13, which is much fewer times than in 12 for me, so I wouldn't be surprised to see this again some time down the road in 14. To my understanding, or in my case, it is apparently caused by the avi codec I use but I don't know how to change that.

EDIT:  just for the record, it happened to me again earlier today in 14, I believe for the seond time. since I switched to 14.