I obtained the code to unlock the safe from Lucky's journal, but am having the same problem. I can see "unlock with code", but nothing is happening and the waypoint is still stuck on the safe. I've submitted a support ticket to Private Division, and have verified the game cache via the Epic games launcher.
Private Division tech support are looking into it. I'll update this thread when I know more.
Edit: The zip file I sent to Private Division didn't make it past their spam filters. Sent again at their request, but if tech support operate like this there doesn't seem to be much hope of a quick solution or fix.
