AppleMusic stops playing songs (playlist) continuously from my Apple Watch Ultra to AirPods Pro 2

When training I put on a playlist from my AppleMusic library on my Apple Watch Ultra (first gen) and stream the music to my AirPods Pro 2. Works fine. Next time, a day or two after, I go training again and put on a playlist but this time the playlist stops playing continuously. When one song is over I have to press the “forward” button in the Music app to play the next song, every time. When I restart my Apple Watch Ultra it goes back to normal, but the same problem occurs next time I play music from my AppleWatch to my AirPods Pro 2. This problem happened when I upgraded to iOS 26 and watchOS 26. Now I need to restart my watch before every training session for the music to play continuously. It should not be like that. Have anyone had the same problem, and is there a resolution to the problem (or is Apple aware of the problem and working to resolve it)?