Hello, I've been having some problems today with my Island raids. After I use a smoke grenade I lose the ability to use the numeric keys to select my survivors, to heal (with either Spacebar or the E key) and to type in the Chat box.
It happens in both of my accounts. I have yet to test it in a regular mission and with other types of grenade, so I'll update when I can.
According to my experiences you should be using Firefox (it only happens to me there) an easy work around is using chrome i never have the issue there or play in full screen on firefox then the glitch should be bypassed, try it next time on the island i think then you should not have this issue anymore if it still happens try to go in and out of full screen then it should fix itself
Hope this helps