Unfortunately not, the first workaround did not help, as there is no second key and the second one didn't change anything either.
I just noticed i posted in the wrong forums, i'm using Obsidian, not Onyx. Can this be moved?
I'm not really willing to pay for something that is most likely a bug (as with all the other possibilitites mentioned here already), i already rent a license, sorry.
Unfortunately "should" often doesn't correspond to "is".
Thankfully the issue solved itself over time, though. So probably some caching issue somewhere.