Disappearing data

I was working in profile M102024 - old gedmatch last night and this morning. Last night I added additional matches and triangulations and began work on a demo case study (why maternal halfsisters match on two segments associated with my mothers cousins but dont matcih my mother).

All of a sudden the segment and triangulation data disappeared and I got the message no data found. The match list was still there.

I first thought is this a backup server sync issue restoring old state of data? then I backed out of profile and went in and the data were there. This struck me as a browser caching thing but why would the server say “no data found”?

On archiving : is it total profiles across trees OR total profiles within trees AND in either case how do kits and trees you are invited to count?