I think you put your finger on the problem. You moved the claw when taking the wheel off and didn't put it back as it was.
The angle the claw hangs at is set and held at two points. The nut on mounting screw behind the axle pockets into the dropout, then when the axle is in the U-cutout, it creates a center line from the center of the axle to the center of the screw, and fixes the mounting angle so it's the same every time.
Odds are the claw slipped forward or back or the back end nut slipped out of the dropout.
Remove the rear wheel, slide the claw to the back of the slot, and tighten it in position with the U lined up. Then slide the wheel all the way into the claw, centering it in the frame from the left side. If all was OK before, you should be good to go now.
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