It was complete new hardware, new sd-card and a new image of openhabian.
Image: openhabian-raspios64-latest-202404091737-crc3ca083c9.img
There was only a “backup” from my old raspberry with openhab 3.4.x to new raspberry.
If you see other strange behavior, I would not trust this install and reinstall. If everything runs smoothly, you are probably good.
Everything works fine after clean-cache. There is no strange behavior.
Only this single behavior: