When you get close to allied bot from his squad, for to make him a treatment or to get into his backpack, then this bot does not react to you.
In this case, You have already started your action, but it's very often interrupted, because this allied AI goes away from you.
Yes, if you squad leader, then you can tell the bot to stop. But what to do if you are not the commander and you want to take the ammo from backpack of allied Ammo Bearer? In this case, the contact with the AI becomes a problem. This is bad detail and shows the weakness of AI in the game.
I think, in this case, under certain conditions (!not danger situation), any allied AI, should always stop self moving or any action and only when, the player is done self action (treatment, inventory/reloading of ammunition), then this AI should be back in formation and continue any movement. This will be a great feature for arma3 AI!

Very often a the player's character does not complete medical treatment, or to take the thing out of a backpack, because this bot doesn't stop and goes away. During threatment, the bot runs away and the animation of treatment continues on an empty space, it looks at least silly!
Also, in this case, the package of medication is consumed, but gone away from the player, the bot does not receive treatment.
This is also bad... Please teach the allied AI react with any support unit.