Audio Codec Not Supported - Cam Pan

Has anyone else experienced this? When I download event vids to my Android phone and try to play them back, the video runs fine but without audio. Android says “Audio Codec Not Supported”. When I play back the event recordings in the Wyze app all I hear is static.

Audio used to play fine but has dropped out recently. Not sure if this is a hardware or software issue.

Edit - downloaded videos will play in VLC on Win10 but audio levels are VERY low. I had to crack my speaker to max before I got anything. Has anyone found a way to fix this??