With hotfixes that are now live, we’ve fixed an issue on Normal and Heroic difficulties that caused Salhadaar to respawn if the raid was soft-reset after killing him following the use of the raid skip.
For players who are currently affected by the bug, this fix will apply to you after your next soft-reset of Manaforge Omega.
A soft reset is when all party members leave the instance, and then come back in. This puts people out of combat, making mobs run back to their original places.
The term “soft reset” can also mean having all party/raid members leave the instance for at least 30 minutes. This causes any trash mobs that have been killed to respawn. The most common reason to do this (deliberately) is to reset a boss fight that bugged out part way through the encounter.