The AceGUI-3.0 lib bundled with the AskMrRobot addon packed and delivered in Twitch comes with version 26 of the AceGUIContainer-Frame.lua file. Might be as simple as integrating the latest AceGUI-3.0 lib to resolve the problem.
Line 4: local Type, Version = “Frame”, 27
Line 182: local frame = CreateFrame(“Frame”, nil, UIParent, BackdropTemplateMixin and “BackdropTemplate” or nil)
Line 204: local statusbg = CreateFrame(“Button”, nil, frame, BackdropTemplateMixin and “BackdropTemplate” or nil)
Noticed differences in setTexture at multiple points too via hard coded values vs references, but don’t believe those are causing errors.