WowAce

What version of Grid2 are you using?

 vr955

What game client version (windows or mac) and language are you using ?

 Windows 8.3, english

What steps will reproduce the problem?

  
Did you try having Grid2 as the only enabled addon and everything else disabled?

 Does not apply

Was it working in a previous version? If yes, which was the last good one?

 Does not apply

Do you have an error log of what happened? If you don't see any errors, make sure that error reporting is enabled (`/console scriptErrors 1`) or install [BugSack](https://mods.curse.com/addons/wow/BugSack).

 Does not apply

Please provide any additional information below.

 Raid debuffs module is missing some key debuffs required for healing this raid (if you need the SpellIDs I can try obtain them this next reset)
Wrathion Mythic:
Creeping Madness

Maut Mythic:
Ancient Curse (it is also a curse, so it appears if you are showing curses on grid2)

Drain Essence (it is a magic debuff)

Maut:

Shadow Wounds (dot applied to tanks)

Shad'har

Fixate (applied by the slime adds that follow one raid member and explode)

Shad'har Mythic

Slimy Residue (dot applied after feeding the boss, lasts 3min)

Carapace:
Breed Madness (not sure this is the name of the debuff, need to confirm, but it is applied by the heroic add when he channels, massive dmg)

That is all I could find, my guild hasn't progressed much further in mythic, thank you for your attention to this issue

Forgot one for Shad'har:
Entropic Breath app applies a 50% healing debuff (not sure if the debuff is the same name as the spell)