interrupt

Teammates' bars during Mythic+ keys

Since Midnight, Blizzard blocks every addon-to-addon message while a Mythic+ key is running, and during raid boss encounters. Cooldown sharing between teammates therefore pauses for the whole key, for every addon. Interrupt counters are not affected.

• New: when a teammate interrupts a mob whose nameplate you can see, their bar now starts from that interrupt, even while messages are blocked. The interrupt used is picked from what is ready, main class interrupt first.
• New: cooldown sharing resumes on its own, with a full resend, as soon as Blizzard lifts the lock.
• New: /int sync now tells you when addon messages are locked by Blizzard.

This nameplate detection depends on what the game reveals about who interrupted, which can vary by content. Feedback from Mythic+ runs is welcome in the comments.