Changing style: dynamic marking distance corrupted score

This happened during the change and I was not aware that the opetation failed. Tried to decrease default 2.5 pt to 1.5 pt below. So I saved and got this message when I opened it again. Unfortunately cloud back-up had over-written the old and changing this number back did not cure the problem.
If I press ignore the score loads up looking normal. Any ways to see where the corrupt code is?
Update: This problem went away after working with the file. No idea where it came from or went away. I leave the file here for development purposes.