What steps will reproduce the problem?
1.Drag window

What is the expected output? What do you see instead?
Stops working

What version of the product are you using?
4.0g

Do you have an error log of what happened?
This error was seen by BugGrabber, US english client

1x [ADDON_ACTION_BLOCKED] AddOn "SmartDebuff" tried to call the protected function "SmartDebuffPetBtn38:SetHeight()".
<in C code>
SmartDebuff-4.0g\SmartDebuff-4.0g.lua:3139 in function "SMARTDEBUFF_SetStyle"
SmartDebuff-4.0g\SmartDebuff-4.0g.lua:3573 in function "SMARTDEBUFF_CheckAnchorPos"
SmartDebuff-4.0g\SmartDebuff-4.0g.lua:3614 in function "SMARTDEBUFF_SetAnchorPos"
<string>:"*:OnDragStop":2: in function <string>:"*:OnDragStop":1

Locals:
nil

Please provide any additional information below.

I was in a raid in BH and after the raid started I dragged the window and got this error. This is just one of over 50 errors with essentially the same error.