Ancestry has being acting odd for me too this weekend. When logged in, if I go to the Memories tab, there is an Ancestry member's username at top left of page and pictures which seem to be from their tree, are appearing in the Gallery section at bottom of page. I have absolutely no idea who this Ancestry member is!
Also, if I try to view the profile of anyone in anyone's tree, I can see their Life Story page, but their Facts page is blank except for a message saying:
"We're sorry, this person's facts information is temporarily unavailable.
You can try reloading the page, or come back later."
Refreshing and/or coming back later has made no difference (nor has clearing browser cache or using a different browser).