what do you mean all Hand-Held AT is bugged?
Hand-Held AT are unable to produce Death Criticals in the live version, meaning for example that say, if say a Luchs wanders into the arc of fire of a M1 57MM ATG and gets shot twice and then gets hit by a bazooka, meaning it has no 80 HP, the exact damage of a Bazooka, it will survive instead of being destroyed.
I've had Stuarts survive a Panzershreck that should have killed them in similar manner, often needing to over kill the vehicle with additional shots, very annoying bug.