Changing Talent Error

[cnewman777]

I open my talents and Zygor Guide indicated I have several incorrect talents choosen. I go to change the talent. I get a UI prompt that my action will cost 1 Tome of the Clear Mind. I click the "Yes" button and I get this error:

2x ...rfaceBlizzard_TalentUI\Blizzard_TalentUI.lua:70 9: attempt to concatenate local 'tier' (a nil value)
...rfaceBlizzard_TalentUI\Blizzard_TalentUI.lua:70 9: in function `PlayerTalentFrame_SelectTalent'
...rfaceBlizzard_TalentUI\Blizzard_TalentUI.lua:40 : in function `OnAccept'
FrameXML\StaticPopup.lua:4082: in function `StaticPopup_OnClick'
[string "*:OnClick"]:1: in function <[string "*:OnClick"]:1>

Locals:
self = StaticPopup1 {
0 = <userdata>
hideOnEscape = 1
itemFrame = StaticPopup1ItemFrame {
}
data = "ZygorGuidesViewer"
button3 = StaticPopup1Button3 {
}
extraFrame = StaticPopup1ExtraFrame {
}
icon = StaticPopup1AlertIcon {
}
maxWidthSoFar = 320
button2 = StaticPopup1Button2 {
}
template = "Transparent"
moneyInputFrame = StaticPopup1MoneyInputFrame {
}
text = StaticPopup1Text {
}
numButtons = 2
editBox = StaticPopup1EditBox {
}
timeleft = 0
exclusive = 1
button1 = StaticPopup1Button1 {
}
maxHeightSoFar = 97.977716445923
moneyFrame = StaticPopup1MoneyFrame {
}
which = "ADDON_ACTION_FORBIDDEN"
}
talentGroup = 2

[cnewman777]

Disregard... I turned off the talent advisor. Reloaded the UI, and re-enabled the talent advisor and it seems to be working.

[consojburow]

I am having same issue but without the error, i click to change the talent, asks for a tome, i click yes and nothing happens. Ill try what the post issuer did but now you know it is a bug in the viewer.

[sak68]

I get the same error, and the same issue where nothing happens when changing the talent. Disabling talent advisor and reloading the UI is the *workaround* but there needs to be a *fix*.

[ZG Support 1]

I believe the Talent Advisor is one of the items getting a re-write for Legion due to talent changes. That should resolve this issue as well.