Only Melee weapons work when round starts

[FaxMac]

I am having this weird issue that whenever the round starts (after the time you can change class before is locked) only melee weapons work, even tho medieval mode is disabled.

I tried deactivating various plugins that may cause a conflict but I can't seem to make it work.

Is this a behavior of a file missing/misconfiguration? or It's a bug? Either way any help would be appreciated.