Button label shakes when resizing a button with animation

Steps to reproduce:
1. I've attached the project FXP file that produces this error
2. Hover over the Order button to see the effect
3.

Actual Results:
When going over the button, it resizes, but the label starts shaking. It's as if the position is adjusted all the time

Expected Results:
The animation is played without the shaking of the label

Workaround (if any):
Change the label to "Orders" and the shaking doesn't happen.

My guess is that it has something to do with the length of the label being an uneven number and the label just shifts position on every pixel the button resizes.