Artifact Talent Error

[Slurpuff]

This prevents you from interacting with your artifact at all: you cannot open it to view talents, you cannot change appearances, etc. You're completely locked out of your artifact until you reload the UI.

The following error occurs whenever zoning into a new area:

4x FrameXML\MainMenuBar.lua:126: Usage: GetCostForPointAtRank(rank)
[C]:: in function 'GetCostForPointAtRank'
FrameXML\MainMenuBar.lua:126: in function <FrameXML\MainMenuBar.lua:124>
...lUI\Libs\LibArtifactData-1.0\LibArtifactData-1.0-5.lua:234: in function <...lUI\Libs\LibArtifactData-1.0\LibArtifactData-1.0.lua:229>
...lUI\Libs\LibArtifactData-1.0\LibArtifactData-1.0-5.lua:295: in function <...lUI\Libs\LibArtifactData-1.0\LibArtifactData-1.0.lua:282>
...lUI\Libs\LibArtifactData-1.0\LibArtifactData-1.0-5.lua:313: in function <...lUI\Libs\LibArtifactData-1.0\LibArtifactData-1.0.lua:312>

Then, when gaining artifact power I receive the following error:

1x ...lUI\Libs\LibArtifactData-1.0\LibArtifactData-1.0-5.lua:354: attempt to index local 'artifact' (a nil value)
...lUI\Libs\LibArtifactData-1.0\LibArtifactData-1.0-5.lua:354: in function '?'
...lUI\Libs\LibArtifactData-1.0\LibArtifactData-1.0-5.lua:67: in function <...lUI\Libs\LibArtifactData-1.0\LibArtifactData-1.0.lua:67>