Don't bother using items to glitch through doors anymore, because you're not going to like what you find on the other side.
It's not a bug - ARC Raiders purposefully doesn't have any health bars and that's very, very intentional, as devs recently ...
A handy ARC Raiders map reveals where to use the keycards in the game, including video walkthroughs and special extraction ...
Find out how you can fix regular in-game Arc Raiders crashing on a Windows PC with the potential resolutions covered here.