This was asked on Christmas eve, today is boxing day. There are only a few people actually reading the forums right now, I’d say less than 2% of the regular users are here, so it is going to take longer than usual.
With that said, your issue looks like the pitch value from the character/weapon is not being replicated properly, if the gun was perfectly level it would shoot where the red dots are. You have the yaw properly aligned, but not the pitch. I am by no means an expert on replication, but that is where I would be looking.
Sorry I can’t help more than that, but it will take longer than usual to get your answer because of the holidays.