Mousing over button on World Map causes:

4x ...dyNotes_WorldMapButton\HandyNotes_WorldMapButton-80000.01-Release.lua:47: attempt to index global 'WorldMapTooltip' (a nil value)
...dyNotes_WorldMapButton\HandyNotes_WorldMapButton-80000.01-Release.lua:47: in function <...dyNotes_WorldMapButton\HandyNotes_WorldMapButton.lua:45>

Locals:
self = HandyNotesWorldMapButton {
0 =
Text = HandyNotesWorldMapButtonText {
}
Right = {
}
Middle = {
}
Left = {
}
}
motion = true
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index global 'WorldMapTooltip' (a nil value)"

hmm interesting...
should be fixed now but...
there should always be a WorldMapTooltip
if it is no there is something wrong with the default UI