Trying to select a Foothold gives the error:

3x InteractiveWormholes\marker.lua:14: attempt to call global 'SelectGossipOption' (a nil value)
[string "@InteractiveWormholes\marker.lua"]:14: in function <InteractiveWormholes\marker.lua:12>

Locals:
self = {
0 =
SetNormalAtlas = defined @InteractiveWormholes\marker.lua:111
Highlight = {
}
Arrow = {
}
Enable = defined @InteractiveWormholes\marker.lua:176
GetTitle = defined @InteractiveWormholes\marker.lua:86
SetSize = defined @InteractiveWormholes\marker.lua:134
Quest = {
}
Texture = {
}
DisableArrow = defined @InteractiveWormholes\marker.lua:161
disabled = false
SetHighlightAtlas = defined @InteractiveWormholes\marker.lua:122
SetSource = defined @InteractiveWormholes\marker.lua:153
SetDescription = defined @InteractiveWormholes\marker.lua:95
MarkQuest = defined @InteractiveWormholes\marker.lua:143
GetDescription = defined @InteractiveWormholes\marker.lua:102
IsEnabled = defined @InteractiveWormholes\marker.lua:184
Pin = defined @InteractiveWormholes\marker.lua:63
SetTitle = defined @InteractiveWormholes\marker.lua:79
Disable = defined @InteractiveWormholes\marker.lua:168
}
(*temporary) = nil
(*temporary) = 2
(*temporary) = "attempt to call global 'SelectGossipOption' (a nil value)"

Will get this fixed as soon as I can test the fix myself, the authentication servers are not letting me log in to the game.