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...
shawnmarx
Advocate II
Advocate IIv-robertq-msft
1) In the example screenshot you gave, you also show the same issue regarding text alignment. It shows left alignment (which is the goal) in the desktop screenshot but not the service screenshot.
2) I tested again on the button and found that directly in the service it's fine, but the Rectangle shape losses it's Round edges when running the report within embed. This can be reproduced in the PBI Playground.
One other update regarding rounded edges - I tested the shape "Rounded Rectangle" and got the same exact results. This is using the Sept desktop release and the service version: 13.0.16777.77.