@GJDober That's similar to autopilot behavior I see in a lot of default (and I'm pretty sure independently developed, too) GA planes -- when I use my yoke button, which I believe in most cases is bound to Autopilot Off, I have to press the button a second time in order to be able to reengage the autopilot. It makes me wonder if this is a sim bug. I don't recall experiencing it in the RJ, but I also haven't flown it since the 146 update released.
Edited to Add: I should have mentioned, the GA planes I've seen this in all use that same common autopilot (or a very similar one) that ships with most of the sim default/included GA planes.