What it says on the tin. Have used this addon previously and not had this issue occur, doesn't seem to change with disabling other addons. Menu aligns properly when addon is disabled. Using an ultrawide at 3440x1440.

Can you be more specific? Here I've put them side by side, addon on and off, and I don't see a difference:

Here's what I mean, the menu panel itself is misaligned:

Use edit mode to move it.

Yeah for sure, but I didn't manually move it here, this is where it defaulted to I believe, as I didn't have the game menu enabled to edit at any point