(v19, linux)
Persistent perk buttons and tooltips:
Problem: The useable perks of the last ally, who acted before an enemy's turn, will stay on screen during turns of enemies and are still useable, till the next turn of any ally.
Think I got also persistent perk tooltip when ending turn via shotcut. No matter who acts next or is the mouse is hovering over other UI elments, it persists till the mouse hover over any other perk icon on the left.