I got the same problem. Visually inspected clutch engaging pressure plate, shifts in any gear without depressing clutch. It’s like the t case is in neutral, no noises. It happened on the freeway, idling in you couldnt shift out of gear, but when the wheels stopped the rear end gears it would shift in any gear without the clutch. Clutch feels fine and I can see it doing the job its supposed to do.