[Aivis Zons]

The temp files folder you can find by going to Options -> Preferences -> General and at the bottom you’ll see Temporary Files Folder path. You can delete everything in the version folder or move it to another folder if you want to be safer.

[Aivis Zons]

1. Does this happen with all kinds of footage across the board? All formats affected equally?
2. Have you looked at the performance tab of your Task Manager when this happens? Especially at what’s happening with your GPU? And RAM?
3. Are you working with 4K+ footage? In that case might be worth a try to use proxies if you aren’t already.

I’m fairly certain this stems from some GPU/memory issue or maybe some compatibility problem.
Could try and change some File I/O settings, see if it makes a difference. Options -> Preferences -> File I/O -> Enabling/disabling legacy decoding and changing RAW/Hardware processors in use. Don’t think I can recommend the “right” ones – it’ll be down to experimentation.

[Aivis Zons]

Is your resolution really matching everywhere? Because I have a suspicion that it’s not.
Can’t tell what resolution is your source footage, but let’s assume it’s 1080×1920 (portrait). You need to set your project resolution and render template resolution to this same value. If it’s the same everywhere then you should output files that 1:1 match your project preview on all devices.

I’ve attached some images:
For project properties – click on the cog wheel above video preview.
Render settings – customize your template and select custom frame size.

Reference what the resolution of your source footage is and input that instead of 1080×1920 in my example. Of course it could be that or it could also be 2160×3840 or 1440×2560…

[Aivis Zons]

If the problem is basically just on your android – have you tried a different video player on there?

Otherwise you need to provide more specifics:
1) Exactly what rendering templates are you using? What format is your video in?
2) Was this working before? Did you change anything in your process/devices?
3) Android version?
4) What codecs/formats have you tried so far?

A lot of unknown variables here.

[Aivis Zons]

Actually on second thought – the parent track setup would work fine, but you can also skip it and just use the Color Corrector (Secondary) for that – it has such masking built-in, I briefly touched on it in my first reply.

Expand all of the dropdowns and leave enabled only “Limit luminance”. Then tick “Show mask”. Find the range you’re looking for and disable “Show mask”. In your case this is basically the same process as using a clip duplicate for the threshold, but I prefer the smoothing that comes from Color Corrector limiters.
Once you’ve selected the right Luminance you can proceed to hue/saturation. It’ll be the same process as with a duplicate track adjustment.

The advantage of using the parent track setup is that you get more flexibility. The corrective content doesn’t need to be a duplicate of original, could be offset, lowered in opacity, etc.

[Aivis Zons]

You need to use track parenting and the Multiply (Mask) compositing mode.

I’ve attached an image with the setup you’re looking for.
Bottom track: your main footage.
Middle track: child of corrective track. This contains your threshold footage – what you attached in last reply. You need to add a Chroma Keyer plugin with pure black as the color to it. Might want to fiddle with the thresholds & blur there.
Top track: copy of your main footage, but with corrections applied. You need to set this track’s compositing mode to Multiply (Mask) – highlighted in red.

If you can’t see the compositing mode button and/or the parent/child buttons – click on the three dots in top-left corner of track -> Edit Visible Button Set… -> tick Make Compositing Child/Parent and Compositing Mode.

Parent/child buttons are right next to the compositing mode button. First arrange your tracks and click the appropriate one.

[Aivis Zons]

Yes, go to Options -> Preferences -> File I/O and tick “Enable MKV Reader (Experimental)”.
Will probably need to restart Vegas for it to take effect.

Alternative workaround – convert files to a different format with something like Handbrake prior to editing.

[Aivis Zons]

Manual masking in such a setup would be quite the task. If you’re using the latest version of Vegas Pro I recommend you give the “Smart Mask” plugin a try. This is a relatively new feature and I find it rather unreliable (haven’t yet tested on VP21), but you might have some better luck. I recommend checking out a video tutorial for it, it’s not super straight-forward.

If Smart Mask doesn’t work at all, then a slightly more manual process would be to add Bezeir Masking, create your mask, click on Motion Tracking and track through all of the footage. You might need multiple masks, like one for the head/face, one for shoulders/body, arms, etc.

Another approach is applying stabilization with “Video Stabilization” plugin. You might have to move it before “Pan/Crop” in the plugin chain. This approach might produce somewhat jittery/weirdly stabilized results though, needs a lot of fine-tuning.

Overall I’d say that tracking is still an area where Vegas Pro is somewhat behind. Many aspects of the process are surprisingly unintuitive (at least up to Vegas Pro 20), if possible I suggest looking into some AI tools/plugins to help with this task.

[Aivis Zons]

Using/creating an opposite color banding to counteract what’s currently there is an option that I considered, but decided not to include in my list, because I reckoned you could get “good enough” results through color correction and it would take a fraction of the time. Counter-banding felt like too much of a longshot.

This offset track idea is cool, but has an obvious downside. I don’t think it’s better than source material. If you’re going with the duplicate offset track approach then an easy way to improve it is by creating masks with a bit of feathering around the static parts (walls, some instruments). That way you can exclude all the people.

This duplicate offset track might be more viable if vegas pro had more compositing modes. In something like After Effects you could set the blending mode to color, which would make the upper layer affect only the colors. There would still be ghosting on moving objects – sure, but only in the colors – vastly less obnoxious.

Creating bands yourself and moving them to offset the color – the problem here is that the bands aren’t visible everywhere. They’re only where that specific light was shining. So you’d have to do some masking again.

So my suggestion – go with the duplicate offset track, but create masks for the static areas.
For the active areas with people and such – apply a color corrector (secondary) and try to isolate the green band, try to correct that. I don’t recommend you target magenta, because I think it’s the actual color of the set + it’s a bit closer to skin tone. You don’t want to target magenta.
Or if you have After Effects at your disposal – this is where you want to do this, but use the “Color” blending mode.

+ Some more “out there” bonus suggestions:
1. Check out the Colorization plugin in Vegas Pro. It’s used to color black and white footage, but might help equalize color. Added some extra artifacts in my case.
2. Consider black and white?

[Aivis Zons]

The banding is definitely there, not a software problem.

I believe this is down to the shutter speed setting on your camera. If the settings are the same then it could be that something changed about the lighting on location and that’s what caused this. This really is something you should correct on location, but there are some things you can do to fix this issue in post. At least a bit.

1) Apply Color Corrector (Secondary), click on “Select effect range” and click on one of the green bands. This will give you a reasonable starting point. In your case you might want to disable “Limit luminance” and “Limit saturation”. To better see what you’re selecting – toggle show mask. You need to fiddle with the “Limit hue” sliders until you visually see that you’re isolating the bands. I’ve attached an image where I played with the sliders a bit, might help as a reference point.
If adding it once is not enough – add another color corrector (secondary) and make further changes, select a different point, focus different areas. Stack the plugin multiple times. It likely won’t be perfect, but you can improve your footage to an extent, it will at least be less distracting.

2) Look into some “deflicker” plugins. I personally haven’t had a use case for them, so sadly there’s nothing I can recommend, but I’m sure there are some out there from multiple sources.

3) AI tools? Just throwing this out there. There might be something, might not – worth a quick check.

Option 1 will alleviate the problem somewhat.
Option 2, 3 could fix it the rest of the way. Emphasis on could. Giving it a brief look – seems like these are more focused on more obvious shutter speed flickering, not this colored bands situation.

And a side note – I picked the green band as I believe “magenta bands” to be the actual color. Could be the other way around – it’s one of the two, but I reckon green would be easier to try and fix.