Staging in the VAB messed up

[Abelinoss]

I don't know how or what triggered it, but this is happening:

 

For some reason there is an empty staging bar covering the actual staging. I cannot get it gone, and it is super annoying, because I basically can't really edit the staging.

 

• KSP Version: The very first one
• Operating System and version  (Windows 10, Windows 11): windows 11
• CPU and GPU models, any other system information which could be relevant:
  • rtx 3060, ryzen 5 5600, 16GB
• Steps to Replicate: I don't know. Probably something with having a rocket, and then building another one.
  The very first moment it had the staging of the other rocket in the emtpy staging bar, then I saved and reloaded the craft, and since then the staging bar is empty.
• Fixes / Workarounds (if known..): none