I'm experiencing this exact same problem as well. Whenever my squad is injured, the medic often tries to run to and from squad-mates and often just stand there spamming "Ready" every few seconds. My entire squad also loses the ability to follow me, they still obey manual move commands, but when I ask them to regroup, they simply stand there. I don't want to have to remove agm_medical.pbo simply because it's one of my "essential" parts of this mod, but in order to return to normal squad behavior, I have to :(
I did notice that it might have something to do with the medic running out of blood packs, but I haven't tested it yet.
EDIT: I just noticed the new 0.95.1 version. I'll see if the issue still persists.
EDIT 2: No luck, the problem is still there. Probably worth noting that when the squad is injured and is inside a vehicle, the medic immediately jumps off for whatever reason which causes him to die in some cases (physics maybe). Commanding him to get in again only makes him enter and immediately exit to wait at one spot.