Never had any issues before aside from now.

Online battle.
Select bazooka, charge to full and release. It switches to uzi and damages self.

Next round my bazooka is aut selected and max power, and fires off.

Next round I try to select bazooka, and it keeps switching to uzi.

Wow, this is a new one! Thanks for reporting it, I'll slap in towards the coders straight away and inform QA.

Cheers!