When interrupted while casting Shadows Of The Dead by a tether grab, Nekros can no longer use any abilities

[IttyBritty]

When interrupted while casting Shadows Of The Dead by a tether grab, Nekros can no longer use any abilities. I've only seen this happen with Ancient infested tether grabs so far. It also stops you from reviving early when you're downed. Once you die (without getting revived by a team mate) the glitch goes away and you can play normally again.