Convertible top adjustment.

This a hard question to answer without seeing what is going on. There are several possibilities, it could be one, or all, or something altogether different.

1. I suspect nothing has come out of adjustment.
2. Bent top frame pieces can cause binding.
3. Rusted articulation points in frame system can cause binding.
4. One or both hydraulic lifting cylinders may not be full of fluid due to a leak.
5. One or both hydraulic lifting cylinders may have bent push rods, and or may not be attached to car’s body tightly allowing miss alignment and causing binding.
6. Low fluid level in top pump.
7. Other stuff that hasn’t come to mind yet.

One test to see what and where a problem may be is to detach both hydraulic push rams from the top’s frame, and manually rise & lower top looking for problems. Disconnecting the hydraulics from the picture simplifies things.

Next with the rams still disconnected, operate the hydraulic pump and see if both rams rise and lower at the same rate, and move the same distance.

Chances are good that one of the pistons is not moving its full travel causing the top frame to **** to one side, and binding. This can be a result of low fluid, a leaking piston allowing air to enter system, or other leaks in the system.