Chroma Key for Mac OS window capture broken

Operating System Info

macOS 14

Other OS

No response

OBS Studio Version

30.0.2

OBS Studio Version (Other)

No response

OBS Studio Log URL

https://obsproject.com/logs/6HKOFN6umMPINwok

OBS Studio Crash Log URL

No response

Expected Behavior

Using window capture on a Flash Player window with moving elements and a green background will remove the green if you use chroma key filter. (Tested using Adobe Flash Player)

Current Behavior

Using window capture on a Flash Player window with moving elements and a green background will not properly chroma key out the green if you use the chroma key filter. See attached movie:
https://drive.google.com/file/d/1NiAyfF4nkfo4DAiKl2OnVDjHZhqxqGqu/view?usp=sharing

Steps to Reproduce

1. Create a Mac OS Screen capture source
2. Use Window Capture on a window with a green background and moving elements (in my case capturing from Adobe Flash Player)
3. Apply the Chroma Key filter to the source

Anything else we should know?

I have tired doing this to other windows e.g. quicktime player and was not able to cause the bug so it might be something to do with using Flash Player specifically. It does not happen if you do full display capture or application capture.

Start by reviewing the linked OBS log and reproducing the three listed steps on macOS 14 with OBS 30.0.2, using an Adobe Flash Player window with moving elements and a green background. Compare window capture with display and application capture; done means the Chroma Key filter removes the green from the window capture as expected.