Apple ProRes 4444 with alpha from toon boom

[LapseArts]

Hello!

I am trying to export a .mov with alpha checked from toon boom harmony 22, into premiere pro to edit. I'm not sure why, but it just gives me an error every time I try to import it.

I get "file contains more than one image descriptor."

However, when I import other files with alpha, they work?

[Michael Grenadier]

not familiar with toon boom harmony22 but sometimes makes more sense to export the foreground over a black background and the alpha channel as a seperate hicon file...