Issue:
Users have reported that the window shows nothing. Not even the "zero characters" message.

initially, the window wasn't even showing at all for me, but after a few clicks it did 🤔

Screenshots by a friend:

Potential issue: https://github.com/DennisRas/AlterEgo/blob/main/Interface.lua#L1477

From https://warcraft.wiki.gg/wiki/Patch_10.2.7/API_changes:

The FontInstance:SetJustifyV function now more strictly validates inputs and requires that callers supply "MIDDLE" instead of "CENTER".