Recording sounds garbled, post editing

I recorded a zoom and it sounded fine when I trimmed it a week ago. Went back today and played it, it sounds garbled, like it is playing on multiple screens but there are no other versions of it open that I can find. The sound continues after I pause the playback. This is affecting ALL 6 of the recordings I have done in the past month. All sounded fine when I checked them prior to sharing the link. Is this a technical issue with Zoom? Can someone help me?