Audio for characters, voicelines, and abilities stops on Havanna in MH (arcade)

Everytime I play Mystery Heroes in Arcade and the Havanna Map comes up in rotation, the audio goes out for all characters, team 1 and team 2. However, I can still use Voice comms . If I die as that character, then the next character the audio is back to normal. It only happens on that map and in MH arcade. Also, just yesterday, I was in a group and wanted to use the hearing impaired setting, for Havanna map and was told that I was not “group leader” so it wouldn’t let me use the feature. ?? Anyone else experience this and find a solution?