Drivetrain stops... bike keeps going.
Usually one would call this a skid. Last night I was trying out a new setup on my bike, and in attempting to do skids (a skill I have yet to master), I ran into a problem. I landed my back wheel, and instead of skidding the back wheel rotated maybe 1/4 to 1/2 a turn forward while the cranks were stationary.
This happened again this morning just when jumping on the bike. With my first decent push the same thing happened except the cranks moved and the wheel was stationary.
I am assuming my lock ring is loose. Anything else it could be?