I can concur, it's still happening off and on after deploying a specter into a mission. It seems to happen a lot with Battery ammo weapons, which don't use ammo at all. I notice it a lot when using my Basmu, and yes the work-around that rectifies this is to switch to your secondary weapon and expend all ammo, but for those that do not know this and end up aborting a mission, it must be quite frustrating and really needs to be re-examined by DE to discover the underlying cause, when they get some free time after the Divuri release. \🤠/