Magazines are disappearing upon reload. It has a 100% fail rate if you have more than 2 mags. Sometimes if you have only 1 or 2 mags, they stop disappearing. But if you add or remove a scope or suppressor then reload again it goes back to disappearing. Also if you drag a mag from a weapon into your inventory, it disappears immediately. I tried both modded weapons and default Arma 3 weapons. No errors are showing in our logs. This is a MP server issue only. When I test in the editor with the same mods, the issue does not happen. This appears to be a server side issue strictly.
This was tested with both modded weapons and default Arma 3 weapons with the same result.