WowAce

What version of Grid2 are you using?

 the last one grid2-r872-alpha.zip

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

 windows 10

What steps will reproduce the problem?

I just Can't add Grievous, Necrotic  or Bursting

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

  Yes

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

  I don't know. I didn't try

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).

No error

Please provide any additional information below.

The dropdown debuffs list is optional, not all debuffs are displayed, you can always create any debuff, simply ignore the dropdown list, type the exact debuff name (or the spedllid number) and click create.

Now i cannot check the code but I think I added some of  these Debuffs months ago, maybe you are not using the correct debuffs names (type mythic in the editbox and the mythic debuffs will be displayed in the list box). 

Update: Grievous , necrotic and bursting were added time ago and must be displayed in the dropdownlist, type the correct debuff name or the word "mythic" (translated to your game language) to see the mythic debuffs.

Yes Thank you, I had to added them manually because for some reason it wasn't show it for me in the dropdown debuffs list