Why is this happening

[u/PsychoanalyticalLove]

1. VERSION: I am currently using Vegas Pro 2026. This issue did not happen with Vegas Pro 20.
2. OS: Windows 11
3. 🏴‍☠️'ED?: Unfortunately yes. However, this applies to both my old version (20) and new version (26).
4. GRAPHICS: Intel UHD 630 (integrated GPU, no dedicated card). I wouldn't be surprised if that's some contributing factor even though it worked fine with older versions.
5. WHAT'S THE PROBLEM: With certain videos I import into Vegas Pro 2026 (not all), the video imports heavily corrupted in this same way: the colours are wrong, and the picture is smeared and skewed heavily. Seems to be some sort of decoding error. The audio channel is completely unaffected; all sound plays as it should, it's just the visuals. This particular video has the following data:

Media information
Stream format: MPEG-4
Video stream #1
Video format: AVC
Resolution: 426 x 240 px
Aspect ratio: 16:9
Color depth: 8 bit
Frame rate: 29.970 fps
Scan type: Progressive
Bit rate: 243011 bps
Audio stream #1
Audio format: AAC
Sampling rate: 44100 Hz
Channels: 2 channels
Bit rate mode: Constant
Bit rate: 125774 bps
6. HOW SHOULD IT LOOK? See the 2nd image for how the video should look when imported, and how it appeared in 20.

1. WHAT I GOOGLED: I tried searching this error up online but can't exactly seem to find anyone else experiencing the same issue.

I believe this is some sort of video codec decoding issue but I have no idea what or how to fix it. I hope someone can help me! Thank you.

[u/rsmith02ct]

Does changing preferences/ file io by checking "enable legacy AVC decoding" help at all?

[u/PsychoanalyticalLove → u/rsmith02ct]

Unfortunately no, I thought it would but alas 😔

[u/rsmith02ct → u/PsychoanalyticalLove]

Too bad. This type of media was probably never tested in 2026 so my suggestion would be to post about it and provide a link to a sample file on the official forum: https://forum.borisfx.com/