Can't see Guest Author arcs in AE

Went to run a few Guest Author arcs in AE tonight, and found that I couldn't find any in the mission computer. They don't show up near the top of a blank search, and a search for Guest Author arcs in particular comes up blank. The same thing happens whether I'm blueside or redside, or whether my difficulty is set to +4/x8 or +0/x1.

changing your diff wouldnt matter in a search for AE arcs

what i think occurred is that all the guest author arcs were actually removed and the reason they no longer come up in the system through a search