Helicopter Unflyable again

I’m not too sure what you mean by “did the bug recycle”, but if you are asking if any settings in your sim could have been changed by MSFS, the answer is yes, that can and does randomly happen.
Most times this only happens with an update.
I would check your settings and confirm.
All of those settings you mention will affect the aircraft.
From what I have seen, the settings that changes seem to occur the most in is the Piloting Assistance settings.

Mods that have been added to the sim, either in the Community Folder or purchased through the Marketplace can also cause this.