There is a small bug in Designer X7 64bit. 17.6.0.1021
If you draw a text item and change the font or size, and then click a preset, the preset does nothing.
Now if you click off the item and click back on, the preset doesn't work until you choose a different preset first.
This bug can also can also be reproduced by changing the font instead of the font-size.
This bug still exists in Designer 2017 update 1.