Clicking on the top row of pixels on certain buttons in the New UI will press the button but does not do its intended action.
How to reproduce:
Click on the top row of pixels on a button
Observe the Button pressed down
Move your mouse
Observe the button no longer pressed down
Observed Results: The Button is pressed, but it does not do its intended action
Expected Results: The Button is pressed, and should do its intended action
Update: This bug has been fixed in Beta/Preview 1.19.0.30/31. But this bug still applies to the Seed Templates Screen.
Still an issue in the latest Beta / Preview (1.19.0.24/25), even though they said it was fixed in the changelogs.