This bug is easily reproducible with a low-DPS melee character, when fighting the Korvan Titanovore and tanking the sunder attack.
Enemies with “Fire a Damaging wave” attack, (usually breath attacks) cause 100% fumble of melee attacks for a couple of seconds when they hit the player, even though those attacks do not have any fumble effects and the player does not get any fumble debuff on their status bar. Despite that, all melee attacks will miss.
I’ve experienced this bug with many enemies, and not only the Korvan Titanovore, here’s a non-exhaustive list of culprits:
- Milton Hart - firebreath attack
- Korvan Titanovore - sunder sand breath attack
- Frostsnalr - cold breath attack
- Beronath Phase 1 - black goo wave attack that does not linger on the floor
- Agven the Wind-walker - cold breath attack
- Carraxus Fould - poison breath attack
- Valaxteria - fire breath
- Aleksander - short aether wave attack
- Ixall Phase 1 - aether wave attack
- Ramzul - lightning breath attack
- Azaleon - wing-flap wave attack
- Hero Gargoyles - wing-flap wave attack
- etc
