Fun fact, in the right panel on the left bottom ( under the chello (?) thing) is a guy with sheet music an his butt and somebody translatet it into todays music. You can listen to it here https://youtu.be/OnrICy3Bc2U

The only “solution” i found was goung back to kubuntu 22.04. Since then it works without Problems. I hope somebody finds the bug and fixes it sometime 🙈 I didn’t seem to have problems with ubuntu 24.04. But i didn’t try it very long maby i just didn’t encounter them.