Help Failed To Load Media

Play stopped working for all media types created today. Yesterday's files work! Message in footer is "Failed To Load Media." I did not update my system. Kid3 audio is not muted. The player progress bar does not move at all, and the stop icon does not switch from gray to black square. Mac OS Catalina 10.15.5 Kid3 3.8.3 This could be a file issue I suppose, but the files that don't play today with Kid3 play with all other audio programs, including Music and WavePad. Is there an extension or library file that talks to system audio? Any ideas?

Well, just FYI, I discovered that an accidental semicolon in folder name stops playback... correcting the folder name makes all files play. You might want to look at why that is. In the meantime, I'm good to go. Thanks.