Not sure about Ohio, but I believe they often don’t let medical marijuana and recreational switch due to requirements that boil down to a need to limit and document the number of medical plants cultivated.
It’s not explicitly forbidden, just not able to be transferred in that way between inventory systems due to regulatory requirements.
Kinda like how hand sanitizer is just vodka with a gelling agent in it, but during the hand sanitizer shortage there needed to be emergency orders to let distilleries make hand sanitizer. Same substance, same or higher standards, but different licensing and regulatory frameworks and different licensing and regulatory agencies.
In a few years once the various agencies have gotten in the swing of things they’ll probably make some updates to simplify the laws.
Until then, you’ll probably see occasional supply issues with recreational while there’s plenty of medical.