The option to "Hide Disabled Totem Plates" doesn't work with Plater addon. Presumably that the actual nameplate healtbar for totems that are not enabled in Gladdy should not show up right? So that doesn't work with Plater. Hasn't worked in TBC either.

I found creating folder called "old" and moving totem modules into that; fixes it. By removing totem module from Gladdy.

1. Open Folder "C:\Program Files\World of Warcraft_classic_\Interface\AddOns\Gladdy\Modules"
2. Make Folder called "old"
3. Copy TotemPlates.lua into old
4. Copy TotemPulse.lua into old
5. Reload UI and Gladdy should keep working; and TotemPlates + TotemPulse will not be accessible in the UI

This temporary fix; I wanted to hide them myself because you can position where totemplates appear.