Font Alignment in 5.3.4f1

We’ve recently upgraded from 5.2 to 5.3.4 and the upgrade has broken our font alignment throughout our project.

The Text UI object is currently selected and the font is set to Centered alignment but as you can see it’s far too low on the object so that it hangs out the bottom. Is there a setting somewhere that I’m missing? Perhaps my font import setting should be different? The font is an image font.

If anyone else has this problem: I had to double the Line Spacing setting in the font import settings for the font to appear the same as it did in previous versions of Unity.