Twice now, I noticed my striker titan in the Destiny 2 beta had its grenades, barricade, and jump reverted to the default settings (rally barricade, catapult lift, etc) after I already changed it to my preferred settings (towering barricade, strafe lift). I think it happens after I close and reopen the Destiny 2 beta application. It's a minor bug, but it is a bug. Apparently it happens on my warlock as well; the healing rift switches back to empowering rift, and the grenade switched from solar to firebolt.