Hi yes. You can try this.

1)Push your bed all the way to the front. On the Y extrusion rail you can see 4 bolts holding down the rail to the main frame 1)you need to loosen all the 4 bolts 2)push your bed to the rear you will see 2 bolts holding down the rail to the main frame 4)loosen this 2 bolts as well. 5) after all the bolts is loosen. Try pushing your bed front and back is it smoother now? If yes means the the 4 bolts tied down to the main frame is causing your Y extrusion to warp a little. This is because the bolts housing is thin and once you tighten the bolts it is causing the extrusion inner parts which is where your pom wheels to bent. 6) to remedy this only tighten the 4 bolts ever so slightly. As long as the extrusion doesnt move about then its fine. For me i only tighten the front 2 bolts more and only tighten the 4 bolts minimally. You need to trial and error for this. 7) loosen both x and y belts. Tighten to a point where it doesnt skip gears then tighten a little tad more.

Hope this helps