When my character reached an achievement level in skinning I got this error.

1x GS-Core\Core.lua:309: script ran too long
GS-Core\Core.lua:309: in function GSUpdateSequence' GS-Core\Core.lua:202: in function <GS-Core\Core.lua:160> [C]: in functionLoadAddOn'
FrameXML\UIParent.lua:391: in function UIParentLoadAddOn' FrameXML\UIParent.lua:478: in functionAchievementFrame_LoadUI'
FrameXML\AlertFrames.lua:210: in function <FrameXML\AlertFrames.lua:203>

Locals:

closing this for the moment based on the work done in 1.3. I havent been able to replicate this since the refactoring was done.

Im trying to reproduce this but no luck yet. I'll keep digging

http://rodgerhyatt.com/pix/051959pic.png
Happened on talents as well

I still cannot find a way to replicate this. Are you using a macro for Skinning?