[BY DESIGN] Research stocks not at 100% after researching

The same thing happens in my game. When a sim is engaged in the 'Research Stocks' activity, he/she stops it as if he/she had completed the task but the job is just 75% done. I have to make them do it again every time in order to have the job 100% done.

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Every time (100%)
What is your current game version number? v1.21
What expansions, game packs, and stuff packs do you have installed? All expansions, Packs and Stuff
Steps: How can we find the bug ourselves? Have sim in business career (investor branch) Research stocks only researches to 75%
What happens when the bug occurs? Researches stocks only to 75% when sim stops
What do you expect to see? sim should research stocks until complete
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? Neutral/Not Sure 

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Researches stocks only to 75% when sim stops

I'm sorry to necro a 6 year old thread, but i think that's more on the Sims' dev team than me. This is still a thing, and your answer isnt satisfactory at all. It's "by design" and is "correctly functioning as designed", ok but like, why? What sense does that make? Why would you purposefully make a player go through this hassle, and why does nothing else in the work like this? What makes it so that this way it's better than the sim doing the full 100%? If it's "by design" then it's terrible design and should be changed, especially with people complaining. 
"Should ordering this action make the sim complete the task like any other action, or should we stop it at 75%, force the sim to start the activity again (which is buried in the "web" balloon, having to click "more options" 3 times to get to said "web" balloon, if you have enough expansions, btw) and pay attention to when it changes to "complete" so they cancel that order since theres no benefit whatsoever if they finish it?" "Yes, thats a great idea, implement it immediatelly!"

Saying "nope its working as intended" without elaborating or explaining what the advantages are, or what system interaction justifies this decision, is just playing people for fools. And having to be asked "why" years after people already showed confusion about the topic, is terrible support.

didateo​ 

Welcome to EA Forums. As you know, this is an old thread. Please see the solution post here for info/steps (I updated the link there). I will lock this thread now but feel free to create a new topic if you like. Thanks.