when boss use defence up, you can see way too high damage sometimes. but other client can see normal damage. my normal cap is like 150k max but can see 180k+ when defence up. this visual bug is not fix very long time.
the instant defense triggers there is a period where you can see your damage at insane levels which is not the case. I have the same issue
Happened to me everyday in Dunas, only the atking client shows the high damage but other client could see normal dmg