I can fire the shots but they don't deal any damage. I think it happens after I use the W skill. When I use this skill, the first shots fired deal damage to the boss, but then after a second or so, it stops dealing damage. After it happens, the Q skill also no longer deals any damage. (it fires, but don't deal damage when it hits the boss) Before I use the W skill, the Q skill can deal damage as normal. I didn't pause the game at any moment.