Hi and great job with the addon, it's real help.

In combination with BlizzMove addon it spits the following error and 'asks' to report it to the author.

It's not that it's not working at all, it just needs to be reopened, maybe the fix is quick, maybe we will all learn to live with it.

Anyways, cheers, keep up the good work

BlizzMove: The frame you just moved (GarrisonMissionFrame) is probably in a broken state, possibly because of other addons. Copy the text from this popup window, and report it to the addon author.

Bad anchor connections for "GarrisonMissionFrame":

"GarrisonMissionFrame.MissionControlTab.1eb95d7a330.1eb95d7a380" is outside anchor family, but referenced by "GarrisonMissionFrame.MissionControlTab.1eb95d7a330.1eb95d7aab0" (created in "Interface/AddOns/GarrisonCommander/Widgets.lua:301", and "Interface/AddOns/GarrisonCommander/Widgets.lua:323" respectively)

"GCFMissions.1e9bfa4b5f0.1e9bfa4b640" is outside anchor family, but referenced by "GCFMissions.1e9bfa4b5f0.1e9bfa4bd70" (created in "Interface/AddOns/GarrisonCommander/Widgets.lua:301", and "Interface/AddOns/GarrisonCommander/Widgets.lua:323" respectively)

"UIParent" is outside anchor family, but referenced by "GarrisonMissionFrame.MissionControlTab.1eb95d7a330" (created in "Interface/AddOns/Blizzard_UIParent/Mainline/UIParent.xml:4", and "Interface/AddOns/GarrisonCommander/Widgets.lua:301" respectively)

I am no longer actively playing WOW since 2020.
I do mantain this addon becaus I see it's still used but hunting for little glithces like this one is a bit out of my scope.
While I cant say I will never fix it, I must say it's not a priprity

Don't worry, it's no life or death situation. I thought since the debug info from the other addon was so thorough and you already have other addons where it doesn't pop up, it might be a simple fix for you.