X and Y moving simultaneously

[full igloo]

Hello everyone, I recently had to rebuild my printer after it suffered a catastrophic failure.

Now I have everything working again, however as you can see from this video when moving in x it jumps a little in Y, and vice versa.

My belt tension appears to be okay, so I’m a bit stumped .

[tacit turret]

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[full igloo]

Problem solved. Screw was lose on the stepper motor pulley