So I have not experienced the issue stated in the subject of this forum, but I am now not able to select the player names in guild fu or the quests in questsFu.
I am not sure if it is related to the same issue but I thought I would mention it.
This appeared after a later update from the one that fixed the layering issue.
ckknight - I think this appeared with the update that added the scroll bars to the tablet frames.
Edit: after updating this morning (3rd Feb), it all seems to be back to normal.