[FIXED] Active Sims interrupt current interaction to do something else

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Often (50% - 99%)
What is your current game version number? 1.63.134.1020
What expansions, game packs, and stuff packs do you have installed? Eco Lifestyle, Island Living, Get Famous, Seasons, Cats & Dogs, City Living, Get To Work, Parenthood, Dine Out, Laundry Day, Cool Kitchen Stuff, and the free Holiday pack.
Steps: How can we find the bug ourselves? Normal gameplay, but it happens more often when there's some sort of entertainment nearby.
What happens when the bug occurs? I will have my sim cook herself dinner (or in some cases writing on the computer), only for her to stop midway through to do something else. Example, sim will stop writing on computer/cooking a meal unprompted without the progress bar completing to watch tv, read a book, garden, or even get a quick meal out of the fridge. This also happens when she's grilling (happens most often with Forager's Stew), but in this instance I am completely unable to resume cooking, and I have to throw it away.
What do you expect to see? Sims to be able to complete the tasks queued for them without interruption.
Have you installed any customization with the game, e.g. Custom Content or Mods? Not now. I've removed them.
Did this issue appear after a specific patch or change you made to your system? Yes
Please describe the patch or change you made. Most of the issues I've noticed within the last two patches, I believe. I don't know the exact patch numbers, but before a week or so ago it didn't happen. The grilling one specifically happened with the addition of Eco Lifestyle.

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In the case of the writing on the computer, the fix seemed to be to move the book pile from the computer desk into another room, but the sim seems to want to look even further away for entertainment while cooking, like going into the next room to watch tv, or going upstairs to garden.  While grilling the Forager's Stew, the sim will stop out of nowhere and when you click back onto the grill, they do the motion of "I can't get there", even if I move it around.  In this case, the sim doesn't seem to have anything else to do, they just stop.

I haven't had any mods installed since the patch before the ladders were added I believe, because I didn't know what kind of interactions it would have.  The only mod I had in there before that was the most updated MCCC available.