Thanks, the surprise is that I knew it should be there, but it isn't. I will wait for the link to appear.

Copied from the Vegas HUB: VEGAS Pro 21 Update 4 (build 314) (5/14/2024) after install of 314...

Improvement

• Correctly copy event properties of an Adjustment Event when a new event is created as a result of a split operation
• Fixed crash which may occur when user tries to open help but help is not available
• Media with mono audio now plays audio back at proper rate
• AVC media with format profile of High@6 now is imported as expected
• HEVC MOV media now imported with proper aspect ratio
• Stereo AC-3 in MP4 container now reads audio properly
• Resource leak that caused UI to become mangled is now fixed
• Prevent crash which may occur when application is brought back into focus
• MXF media is now decoded properly
• HEVC 4:2:2 CPU media now decodes as expected
• Fixed problems with errors in decoding with NVidia GPUs
• Context menu is missing when right clicking on meters
• Proper handling of Alpha channel with Adjustment Events
• Fixed a continuity problem with keyframes in the color correction plugin
• Copy attributes function in Titles and Text plugin no longer throws an exception when multiple fonts are used
• The Auto Correct function in the Stereoscopic 3D Adjust plugin no longer causes a freeze or crash
• Canon 600d media decoding errors are now fixed
• Rendered audio is no longer out of sync
• Fixed issues with MKV files with improper thumbnails, playback issues and memory usage
• Fixed crash inside of the video cache manager
• AI Upscaler no longer distorting output when scaling is between 1.1 and 1.25
• Fixed a crash which may occur after undo/redoing shortly after bringing VEGAS back into focus
• Improve speed when application comes back into focus
• Fixed AMD pixelization problems

Known issues

• AMD GPU color issues
• Project Versioning warning
• Project loading issue
• Preference default change
• NVidia GPU decoding problem

It should patch itself directly- you can confirm that in add/remove programs.

mxf still opens as multichannel audio even with this option turned off!

@pierre-k  ... it would be better to open your own post about this .. your issue is totally unrelated to the OP's issue in this particular post.

It would be expected that the Vegas team will open a "general comments" post soon - as they have in the past.

mxf still opens as multichannel audio even with this option turned off!

That option no longer does anything; seems intended.

Hi, these are the only Vegas items I have in Documents/MAGIX Downloads/Installationmanager, this doesn't bother me as all downloads are accessible in the kindly posted link in the comment above but just for this post -

For VP21 build 314 issues other than that raised by this thread's OP, there is now a general comments thread - https://www.vegascreativesoftware.info/us/forum/vegas-pro-21-build-314-general-thread--145728/

@Cristinel-Neagu  ... the NEWS announcement for build 314 has now been posted on the forum - https://www.vegascreativesoftware.info/us/forum/update-vegas-pro-21-build-314--145714/ - and the .exe file link is highlighted at the end of the post by clicking on the blue "here" link.

Just downloaded and installed Vegas 21, build 314. Boom, immediate crash when I try to load the project I have been working on recently. It loads the project, then gives an exception dialog, crashes hard and goes away. I restarted my PC, same thing. Uninstalled, reinstalled, same thing. A different project seems to work, but there is no obvious difference between the two that I know of. How do I revert back to build 300? The Magix installation program seems to automatically install build 314, so I'm not sure how to revert back to the previous version. I must say I'm disappointed this is happening. How can I not even load a recent project from a couple of days ago? I'm too busy to waste time on debugging this.

@Dean-Richard Hi, there's a link in @Dexcon's comment at the top of this thread where you can download build (300)

@Dean-Richard Hi, there's a link in @Dexcon's comment at the top of this thread where you can download build (300)

Thanks! I reverted back to build 300 and it loads and runs the project now. Thanks to you and to Dexcon. It's upsetting that I had to waste time for a version that won't even work with previous projects, but at least I am working again.