[rmathes]

I just discovered the problem, it's a conflict with SpellCatcher. If I disable it as an input source, the typing issue immediately resolves.

Weird. Never had a conflict between OF and SC before. Am engaging the help folks of both companies to see what's up. Something changed with OmniFocus, may have to go back to a prior version until this is (hopefully) remedied. I like both apps a lot.