Inactive played sims now skill up when used as NPCs
Since SimGuru Graham confirmed in the Ask a Guru thread on April 14th, that the job assignment happening to inactive but played sims was indeed a bug, and stated that:
"Part of supporting rotational play is respecting your played households and not making significant modifications to them during the time when you aren't directly controlling them. We'll be taking a look into this specific behavior that was introduced in that game update."
I would like to point out that not only did the May5th patch not fix this, but it added more to the problem, as the sims now also gain skills while you are not playing them.
For instance, I left a family with a sim who had a fishing skill of 1. I did notice him fishing in the neighbourhood while playing another family, and by the time I got back to the first family, I get a notification for completing the achievement of maxing the fishing skill with a sim. I checked and he now has fishing skill of 10.
Another example: My inactive sim children are often seen playing on jungle gyms in neighbourhoods that have one of those. All children now get to level 10 motor skill when I am not playing them.
I would consider skill gains of those sizes as "significant modifications".
(I play unmodded, no cc, current patch, base game + OR).