When I spell curse of pain , there is no time monitor for it. And I found there is no time monitor for all curses

This is some issue with the zhCN localization/realms that was causing errors before. It doesn't cause errors any more, but it won't show a duration for these abilities that were causing problems earlier either until I can figure out why it is behaving this way for players on Chinese realms.

This basically applies to all abilities that are able to be applied multiple times to a target (such as a curse being applied twice, once from two different warlocks). Abilities that are simply overwritten and refreshed should still show durations for now.

It is something I'm aware of, but I just haven't been able to track down why it is specifically only affecting Chinese players. I even installed the locale on my PC to see, but I think it may be something specific with to player names (which I can't test from my region), as even then I was unable to replicate the problem.

This should now be fixed. Apparently caused by Fire Vulnerability from mages having an entry in zhCN clients with the same name as Curse of Agony. As a result of the fix, if playing a mage, you won't see the duration of Curse of Agony, and if you're not playing a mage, you won't see the duration for Fire Vulnerability.