Has not crashed yet, but I was not testing long. Once I re-added the 'saves' folder and went into the game, my families/worlds were there, but when I went to the gallery, where you upload &/or share builds and sims/households, there was only 'default' stuff in there. None of the households, rooms or lots that I had saved to my library &/or shared with the community/gallery. Also, when I went and searched in the general gallery for my username, nothing came up. Not sure why if my re-adding the 'tray' folder was not the difference, but once I did re-add it I now see the items in my library and the gallery again. I also did see that someone had downloaded one of them while I was on the game for a short time after that, so they appear to be working/connecting. Update to this: I looked further at the library/gallery and apparently the tray brought back in my library items, but only a handful retained their connection to the gallery, though a bit over 30 had been 'shared'. Perhaps the connection was broken when resetting things, or by the fact that I re-ran the repair hoping it would re-connect. Anyway, I have re-uploaded/shared to community the items - though, once again (like when the gallery was re-done a couple of weeks ago), I lost all of the download counts.
I did notice a couple of things. The family I have been playing for a few days in Newcrest (they needed re-assigning of beds, re-hire the maid and a few things, but seemed okay other than that) had been unable to hire a gardener before (greyed out in Newcrest), and when they were calling to hire the maid now gardener was not greyed out anymore -and the gardener showed up. Also, re-downloading the main file and re-adding the old 'saves' and 'tray' file reduced the Sims folder significantly. The day before the folder was 472.1MB and currently it is 92.9MB. So, hopefully it cleared out the right stuff. I will test it more and let you know.
Update - after more time playing in that game (maybe a week or so 'Sim time') I have had several days that rained and one 'mystery weather' day and no lighting on any of them. Maybe it was a 'mystery' weather day and that was the issue and it was a rare occurrence, too soon to tell. I can live with it being very occasional (or even regularly, if I know/plan on it.
Another thing I noticed when the lightning storm day was occurring... neither the gardener or the maid came that day. Is that normal on days with lightning?