I'm working on FCP 10.4.7 and having issues exporting when I use compound clips inside multicam clips. If I export the compound clips and replace the compound clips in the multicam clips, it's fine, but otherwise, I get an error.

Any ideas? This used to work before I migrated to Catalina.

OS 10.15.1, FCP 10.4.7, does the same on the Macbook Pro and the MacPro.