My friends have higher resolutions monitors which forces them to use the UI scaling to see their menus. We've discovered on the new TMOD update that they can't use the wormhole potions if they hover directly over a party member's icon on the fullscreen menu map.
We've tested in the base terraria version and their scaling doesn't seem to mess with the alignment of the "Free teleport" option in the fullscreen menu.
Please see attached screenshots for reference.