I did a rollback on version 1.1.10 and it works

A little bit more info: Yesterday (version 1.1.11) 2 players could´t kill heli, HP rose again on max. I couldn´t confirm this, but my tests yesterday and today showed that it didn´t come to me, it flew elsewhere and after i tp to heli and attacking it, suddenly flew away. 

Like i said, version 1.1.10 yesterday worked better for me than the update, but today it´s the same thing - during a fight it flew away.

So now i´m a little bit confused.