I keep getting this error when I click on anything that is not supposed to be clicked on the interface for both the garrison mission table and the ship yard command table. Garrison Commander is the only one that I think would be causing it, but I also have Master Plan installed. I also posed this in the comments.

BlizzMove: The frame you just moved (GarrisonShipyardFrame) 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 "GarrisonShipyardFrame":

"UIParent" is outside anchor family, but referenced by "GarrisonShipyardFrame.MissionControlTab.1f2f37a7f60" (created in "Interface/FrameXML/UIParent.xml:4", and "UnknownFile:0" respectively)

"GarrisonShipyardFrame.MissionControlTab.1f2f37a7f60.1f2f37a7fb0" is outside anchor family, but referenced by "GarrisonShipyardFrame.MissionControlTab.1f2f37a7f60.1f2f37a86e0" (created in "UnknownFile:0", and "UnknownFile:0" respectively)

Additionally BugSack gives this.

1x BlizzMove/BlizzMove.lua:412: BlizzMove: The frame you just moved (GarrisonShipyardFrame) is probably in a broken state, possibly because of other addons. Copy the text from the popup window, and report it to the addon author.

[string "=[C]"]: in function `error'

[string "@BlizzMove/BlizzMove.lua"]:412: in function

[string "@BlizzMove/BlizzMove.lua"]:649: in function

Locals:

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

I am also now getting this from BugSack:

90x .../Blizzard_GarrisonUI/Blizzard_GarrisonShipyardUI.lua:946: attempt to perform arithmetic on a nil value
[string "@Blizzard_GarrisonUI/Blizzard_GarrisonShipyardUI.lua"]:946: in function <.../Blizzard_GarrisonUI/Blizzard_GarrisonShipyardUI.lua:907>

Locals:
self = Frame {
0 =
FogFrame1 = Frame {
}
missions =

{
}
followerTypeID = 2
FogFrame2 = Frame {
}
bonusEffects = {
}
pendingBonusArea = {
}
UpdateCombatAllyMission = defined @Blizzard_GarrisonUI/Blizzard_GarrisonShipyardUI.lua:2264
bonusFrames = {
}
FogFrame3 = Frame {
}
missionFrames = {
}
CompleteDialog = Frame {
}
MapTexture = Texture {
}
FogFrames = {
}
}
timeNow = 184331.612000
cursorX = 984.166740
cursorY = 745.833366
bonusAreaTooltipIndex = 1
tooltipHeight = 0
(for index) = 1
(for limit) = 1
(for step) = 1
i = 1
bonusFrame = GarrisonShipyardBonusAreaFrame1 {
0 =
radius = 120
description = "An airship spots and attacks hostile ships in the area, increasing the success chance of missions."
BonusMissionAnim = AnimationGroup {
}
duration = 432000
CircleTexture = Texture {
}
bonusAbilityID = 17
BonusAreaAddedAnim = AnimationGroup {
}
CirclePulse = Texture {
}
CircleGlowTrails = Texture {
}
startTime = 1688964966
icon = 342918
name = "Air Superiority"
}
(*temporary) = nil
(*temporary) = 120
(*temporary) =
(*temporary) = 1
(*temporary) =
(*temporary) = nil
(*temporary) = "7 |4Hr:Hr;"
(*temporary) = 1
(*temporary) = 7
(*temporary) = 1.500000
(*temporary) = 3567
(*temporary) = 28767
(*temporary) = 3600
(*temporary) = 3567
(*temporary) = "7 |4Hr:Hr;"
(*temporary) = "attempt to perform arithmetic on a nil value"