I have run into a glitch a few times that has prevented anyone in the raid group from reviving another groupmate. This has happened on three separate occasions, twice in Paradox Wave(two runs, multiple times per run), and one run in Law and Order. Generally what happens is someone starts to revive another player, while reviving they are hit or an active effect on the player expires causing the revive to cancel. After this forced cancel of the revive, no one in the group is able to revive this player for the rest of the duration of the rally countdown. When attempting to revive the player, your own character has an animation as if they were attempting to revive the other player for a second, then they return to standing. It is almost like a lag when attempting to interact with something and it fails do to lag, but it is when reviving another player with no other noticeable lag.
