After steam update and Arma 3 1.94 hotfix all 184GB of mods show signature mismatch as well as a lot of players are seeing the same problem that I have talked to who frequent our server. Mods are up to date on the server
I have tried to re-verify Arma and even reinstalled Arma3 twice as well as downloading my mods again and was able to play last night. Opened up the game today and most of my mods are gone and the ones that are still there all show signature mismatch just like the day before and now they show as corrupted!