With the new update for buttons, we have two issues with formatting. Both of these are with the rectangle shape, but may apply on others. 1) For text, if there's any word wrapping then the left or...
The issue is with Shape and shape formatting properties,
on older versions there was no shape or shape properties you can make a rounded edges by changing the outline properties, on the new update you get
which does not exist on older versions of PowerBI desktop.
According to my test, the button loses all it's shape properties , Shape, Shadow and glow
the issue started with the recent update due to inconsistencies between the older settings and the new ones.
looking forward to an update from Microsoft