I’ve already sent an email to support, but thought this might help anyone troubleshooting any issues with the new SteamVR 2.0 update.
After the update, the System Menu will open on its own during a game launch. In Loco Dojo, if the system menu is up too long while it loads, the player’s controllers/hands will not load into the game. They can be seen in the system menu, just not do anything in game. Simply closing the system menu right after the game starts loading works. There is also no issue if SpringboardVR is not running.