Hi,
Best way to proceded here is to remove all four rod caps.

Now rotate cranka nd ensue it turns easily..

Then ONE at a time, refit a rod cap, and check the crank still rotates fine.

If so, REMOVE AND MOVE TO NEXT ONE.... so you only have one rod and piston connected to teh crank at any one time.

When you find one that sticks where you suggest, you can deal with it as necessary.