I have this problem since i installed the game after a format.
It's almost if the game is blocking this addons.
I noticed using the Map Pins addon that in the filter section, the "unknown skyshard" mini-icon is missing, together with the lorebooks icon and treasure chest, while the full white "skyshard done" is present.
Also, If i delete the line "Skyshard 1" inside the AddonSettings.txt, when i launch the game, the line is back again.
Any solution?