Un even height  

RE: Un even height

It appears to be all around and could be where your infill starts.  

RE: Un even height

Its where infill ends. Top par is hollow and bottom is solid up to that line.

Still not sure why  its shifting and one side is squished. 

RE: Un even height

From your description, this could be an example of the "bulge":

https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-how-do-i-print-this-printing-help/buldge-when-print-reaches-solid-layers/

https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-how-do-i-print-this-printing-help/any-tips-to-get-rid-of-the-bulge/

https://forum.prusa3d.com/forum/prusaslicer/mitigate-wall-bulge/

TL;DR: Many suggestions, no universally applicable solution.

RE: Un even height

Thanks for links Im Ill see if can find solution.

So can this cause shift in layers and squishing of one side?

RE: Un even height

Shouldn't cause layer shifts. Like Chuck, from the picture I thought it was all around. 

Common causes for later shifts:

• Grub screws on X motor not properly tightened. One has to be tightened against the flat side of the motor shaft.
• Belt not correctly tightened. Use this tension meter to get it right: https://www.prusaprinters.org/prints/46639
  X carriage over-squeezed. Loosen the back plate on the X carriage axis.
• Nozzle hit an obstacle. Some patterns such as grid have lines that cross within one layer. This can lead to little pile-ups at the intersection points, in particular if you have slight overextrusion, which in turn can lead to the nozzle catching at those pile-ups. See https://help.prusa3d.com/en/article/infill-patterns_177130/
• Zip ties on the wire bundle on the back of the extruder not properly positioned, so they or the cables hit the model.

Squishing on one side could be cooling related.  You can rotate the object and see if it persists. 

RE: Un even height

I concur.  This does not look like a layer shift at all.  

Posted by: @fuchsr

Shouldn't cause layer shifts. Like Chuck, from the picture I thought it was all around. 

Common causes for later shifts:

• Grub screws on X motor not properly tightened. One has to be tightened against the flat side of the motor shaft.
• Belt not correctly tightened. Use this tension meter to get it right: https://www.prusaprinters.org/prints/46639
  X carriage over-squeezed. Loosen the back plate on the X carriage axis.
• Nozzle hit an obstacle. Some patterns such as grid have lines that cross within one layer. This can lead to little pile-ups at the intersection points, in particular if you have slight overextrusion, which in turn can lead to the nozzle catching at those pile-ups. See https://help.prusa3d.com/en/article/infill-patterns_177130/
• Zip ties on the wire bundle on the back of the extruder not properly positioned, so they or the cables hit the model.

Squishing on one side could be cooling related.  You can rotate the object and see if it persists.