When selecting which gamemode you want to be in when creating a world the hover event on the button keeps there even if you're not hovering over the button.
This also happens to any other button in the world creation menu.
MC-147014
Clicking a gamemode button on World Creation menu keeps in its hovering state even if mouse isnt hovering over it
Resolved
Cannot Reproduce
1
The described behaviour cannot be reproduced on 1.15 Pre-release 2.