FLStudio 20.1.2
Complication:
FLStudio 20.1.2 (both Windows, macOS) opens the file and gives output:
"Error. An error occurred while reading the FLP file. It may be corrupted, or some plugin caused an error while opening."
Error ...
FL 20 (newest) on Mac OS Catalina, the playback within the DAW is fine.
However, I used AU Plugins (EastWest Play and Kontakt) and they only export audio in an incomplete way (every sound stops after less then 1 second ...