Another week of issues shuts down the mode.
Gamers have been waiting for Bungie to reintroduce Trials of Osiris since the latest expansion went live earlier this month. Due to unforeseen issues however Bungie announced that Trials would be delayed until November 27. November 27 is today.
It isn’t back yet. Due to yet more issues Trials of Osiris has been disabled for the foreseeable future.
Due to a recently discovered issue, Trials of Osiris has been disabled for this week. We are currently investigating to determine when it will return.
— Bungie Help (@BungieHelp) November 27, 2020
It seems likely that the sudden cancellation is related to a bug revealed on YouTube showcasing a number of exploits in the pvp mode.