>>10732317If you are talking about the ring above the ball on the left piece, yeah it's going to be weak there forever. It looks like you got solvent on it. But it's likely it won't matter anyway. Often times you could cut a little section out of a ring like that entirely to no ill effect. I've done that a ton of times but not with that particular piece. It's entirely internal and never should have been exposed to paint or solvent though man. I wouldn't expect it to be an actual problem in this case though. If you pop her together and she starts to lean, then you will need to mess with it further. Until then, safe to ignore it. If it breaks, it will be the moment you push that ring onto the peg.
Assemble it and post again with an update either way for posterity.