The problem
When there are multiple groups to buff, the list starts at the bottom (immediately above the buff button), and is ordered in groups 1-8, in pairs in the case of priest with Fortitude and Spirit.

However, if option to skip a group is enabled if not all players are in range, then the ordering does not update, and clicking the Buff button seems to buff the next viable group.

This is causing some confusion when clicking the Buff button and the next-in-queue remains in place.

Expected behaviour
The buff queue should reflect what is actually going to happen when clicking the Buff button.

Changed sorting in latest version, not sure if this is still relevant. The sorting happens by distance, and distance is not precise, rather a rough up to 1-3 yards precise measurement.