Recently I’ve been experiencing this issue with the Roblox Launcher
The Menu CoreGUI Doesn’t seem to load players, and I also can’t reset and leave the game.
I can’t help but notice the old user interface. Are you using Bloxstrap? I’m a Bloxstrap user and have had this exact issue happen to me. Switching back to the official launcher resolved everything. Pretty sure a recent Roblox update just messed up Bloxstrap temporarily. (That, or it broke the old pause GUI)