AudioFinder can't play Midi files

Did I miss something? It worked early.

macOS 10.15.2
AudioFinder 5.9.27

In Catalina Apple has deprecated some features. I’ll have to test it once I get a Catalina system running. At the moment personally, much of the third party software I use is broken on Catalina and so I haven’t upgraded.

In general is never a good idea to adopt a new Apple OS in the first few months, Apple doesn’t have any concern about breaking third party software.