I turned off BP Compiler Manager and the package was able to complete.
According to the log, BPInterface_Button is the asset that is failing the package
This is a regression from before BP Compilation Manager was put into the stream at CL 3378131
Result: The package fails to complete
Expected: The package completes and is playable
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-43630 in the post.