$Black Flashing when Slinging

Just after the update using the same sever and map as used for ages... two players on the map in Hueys. When one of them picks up a sling load the other experiences black flashing as though the rotors are passing the front of the screen and are BIG and square.

At first I thought my card was going. It also happened in the F2 view.

When the load was released they went away and came back when another load was collected.

There are also 'odd' graphical glitches occurring to from something which was quite stable.

+1 witnessed this today, god damn aweful eye hurting bug

an mi-8 picked up cargo and started flying, for everyone who could see the chopper got this black flashing