This is in an Amana side-by-side, FWIW.

Fills, freezes, starts a harvest cycle. Then it hangs up with all the
ice cubes stuck on top of the icemaker, and the fingers don't complete
their rotation since they're blocked by the ice. If I remove them
manually, the cycle finishes, and more ice is made, which also ends up
on top of the icemaker on the next harvest cycle. It's not overfilling,
the cubes are normal size, and there is no overflow into the ice
dispenser bucket.

Could it be a heater problem? Not sure since the cubes leave the tray,
then get stuck on top. Weak motor?

The appliance repair sites I googled were not too helpful with this
specific problem.

Think this is anything that removing the icemaker and cleaning it up
will help, or should I just bite the bullet and buy a new icemaker?

Oh, BTW, the icemaker is just a little over a year old, sure didn't
last too long.

Thanks in advance for any advice,

Jerry