Just came here looking for an answer to this. Thought I was going insane for a while since my timeline is one track with some text laid on top, about as far from complex as possible.. I even took out the video track, leaving only the audio, still getting this repeat thing. There’s no fading, I trimmed the audio off, deleted it and reimported, restarted PPro, restart the machine, still the same thing. Frustrating to hear they’ve known of the bug for two years and still it’s here? ugh.