I have 3 rats as my bodyguards right now, 2 with the wings upgrade, armor, and the crossbow upgrade. They both attack just fine and land and shoot their crossbows at whatever I hit, very effective extra protection. The issue lies with my 3rd rat, who has the bee upgrade, the health upgrade, and the armor upgrade. Whenever they're on follow and I hit something, my other 2 land and start shooting but the bee just flies in place like nothing happened.
Tried taking off the upgrade and putting it back on, swapping rats, and putting them in a sack and taking them back out again and it didn't work. Dunno if updates for older versions are still happening but I thought I'd report it. Bug kinda makes the upgrade useless which is really annoying but at least it's not that expensive.

Did a little bit of testing and the bee rat only doesn't attack when my crossbow rats are also following me, when it's alone and I hit something, they attack. Is there any way to disable that if it's a feature?

Another finding- got 3 rats with the bee upgrade and I'm back to having them not attack anything. I got one to attack a sheep once but when I tried to walk away and come back so they'd do it again, none of them would. So now I have no crossbow rats and 3 bee rats and none of them are doing anything.