I can confirm this also in regard of saving the search results to a list.
I normally periodically search all my solved (mystery, letter, multi..) cached (ie caches with updated coordinates) and create a list, which I can upload to my GSAK and ultimately to my Garmin GPS.
For two-three days it hasn't worked, after Adding my (currently 905 solved not found enabled) caches to a list, the page just gets stuck with the circling icon which never stops. (Well, I haven't waited eternally, but a lot longer as compared to what it used to happen).
Hopefully this gets solved soon as my "workflow" is based on keeping the GPS up to date.