Running Plexamp on my iPhone connected to my 2020 Audi using CarPlay. Browsing and playback all work great, but I cannot get the fast forward or rewind buttons to work. I listen to long play (>45 minutes) audio files and so these options would be helpful.
The fast forward / rewind buttons are displayed correctly and clicking them one time has the expected result of moving to the next or previous song. However a long press does nothing.
As a sanity check, I tried Spotify on CarPlay and these functions all work as expected.