"Matte width does not match image"

Hi y’all,

just got a new error I haven’t seen before. I had a fresh canvas and drew my first simple mask, and when I hit Track Forwards, this error pops up:

05

I’m using the footage as third resolution when tracking, so it’s a proxy. Does that have anything to do with it? The original footage is an 8K EXR sequence, and it was very slow in Mocha Pro on my computer, hence the proxy/third workflow.

Any tips on how to bypass this error would be greatly appreciated :slight_smile:

Assuming you are using plug-in, what host? I would try 1/2 res proxy.

Also note, that if it tracking data export as goal, you could down res your footage to 1/3 scaled jpegs, do your track, then relink the project to the full scale files before exporting the track data. Mocha should scale to the source file dimensions.
hope this helps,
R

I’m using After Effects 2018.

I’ll try your workarounds, thanks! :slight_smile: