u/Choice-Airline-3596

Hello, I'm new to 3d printing, so I'm still learning, but i like to see what everyone else thinks. I am having a really bad layer shift on my printer, like from the beginning (see picture). All my belts are tight, and nothing is hitting, but i notice it making a clunk sound when it moves from one side of the gantry to the other. I checked, and it's not dragging the infill, and the bed is leveled. Any ideas on what this could be? I greatly appreciate any help.