problem with opening doors

i have a problem with opening the doors on any vehicle, 1. it dosent give me a button to open them automatically from the key board, and 2. when i first spawn a vehicle in, the door click boxes show up, but then i move my camera and they disappear forever, for example, when i spawn in the gavril scout, (btw this is not a problem with the scout, im just using it as a example, it happens with every car,) when i first spawn it in, the tail gate click box shows up and lets me click it and open the tail gate, but when i move my camera with the mouse pad, the boxes dont show up again on any door, they only show up again when i spawn a new car in,

also it might be a problem with my computer because for some reason, beamng has always been kinda broken for me, for example, when ever i press the R key it crashes the game no matter what ive tried, ive dealt with it for years now, and eventually i just found out you can technically respawn with ctrl-R so i just use that from now on,

 

I don't have this problem. Clear cache or safemode.

 

ive tried both,