Hello
I've been playing on a Vanilla multiplayer server that is constantly full with 50 players. No mods at all, except the mods on my side which are VTS, JSRS, CBA & ShackTAC hud. Nothing that may add or remove any helicopter features.
My ping is constantly 60MS on the server, I used to play on american server too with a ping of 220 on my side.
I am using Advanced helicopter module with everything Enabled except Auto-trim for 'extreme' realism and challenge.
The issue is that most of the time I fly a squad of players that are usually bigger than 6 members (Estimating, I haven't noticed a pattern cause there are cases when 1 single player can cause this) and I land them at their objective and they start jumping out, I loose my rotors completely (Red Main engine, missing rotor blades state. It's still slowly spinning with the remaining 25% of the physical rotor blade, but of course I am unable to fly). Making me unable to fly and take off.
I do not physically see (While in 3RD person view) the soldiers actually clipping the rotor blades, they don't seem to get too close to it but I do see soldiers leaving the vehicle 2 meter off the ground when they all jump out at the same time.
This problem occurs a lot for me the past week (When I purchased the DLC). This also made tactical landings where I back up with the huron to a hill side and let people dismount and climb in while flying, but again loosing the rotor blades although I don't see physical contact with the ground.
This happens on Flat terrain as well, with no obstacles around the rotor blades too.
[TL;DR]
As soon as a large squad ejects out of the rear of the Huron, the rotor blades break off and engine red. It seems like one of the soldiers ejects a bit higher than the rest that causes it, but uncertain.