All words underlined in latest Beta

Hi, just installed the lastest Beta - V:
and opened up my project. But now it seems to have underlined every word in my project as if it was misspelled. But, if I click on the word it shows up with “No Guesses Found”
So it’s not registering it as misspelled, but just adding that red dot underlined graphic under everything.

Has anyone seen this before? Any fix?

Adjust your File > Options > Corrections > Dictionary, or for some reason during the upgrade you have corrupted your current dictionary, in which case it is best to reinstall Scrivener, preferably into a new location.

Fantastic. This worked perfectly. Thank you!
Much appreciated.