Though this doesn’t mark the first time that Destiny 2‘s recently introduced Onslaught activity has faced issues, Bungie has recently alerted the game’s currently-thriving player base of a bug in the activity that may prevent players from progressing past the 20th wave in the mode’s 50-wave variant. Though it’s not yet clear how widespread the problem is, Destiny 2 players should be wary when jumping into the horde mode this week – particularly if they’re hoping to complete a 50-wave run on Legend difficulty.