I started a new spin cycle. The pulley turned back and forth several times, stopped agitating, then it sounded like it was trying to pump water (no excess water was in the washer since I had not set it where it would fill).
After a couple of minutes, it turned a couple of rotations counter-clockwise as viewed from the back, stopped, then started to "spin" clockwise slowly for multiple rotations, appeared to try to speed up, almost imperceptably, then stopped. The pump continued to try to run for a couple of more minutes, then stopped. After about a minute, the pulley went CCW again a couple of rotations, stopped, then once again went CW for multiple rotations, it definitely appeared to try to spin but was certainly not fast enough to extract water from clothes, then it stopped spinning and the pump came on again.
After a minute or so the washer started agitating back and forth about two spins in each direction, several times, it was still doing this when I came back to the computer.