Should've been clearer, all suggestions and autocorrect.
However Openboard seems to have a dependency between next word suggestions and corrections. Auto-corrections also don't seem to work with suggestions turned off from my testing.
I disabled suggestions and it seems to have fixed it. I left auto-correct on and haven't had any issues so far.
Does auto-correct actually work though?
Either way thanks for confirming, I'll need to check on auto-correct a bit more then.
It's working with reduced functionality. It will add apostrophes and fix some mistakes, but doesn't seem as robust as with predictive/suggestions enabled.