Stages from the More Fun Together add-on

I don't use mods/cc
I play on EA platform on PC
Sims get promoted for example in lawyer or athlete career, but milestone is not recorded in simology. Milestones are not recorded for children either. There is fifth level of movement, and milestone dance, running and maximum level no longer appear.

My Sim is in businesswoman career and milestone is recorded, but Sim in athlete career no longer
that's what I mean in case of movement

• There's only two promotion milestones afaik. The first one and reaching the top of the career. You don't get one for each promotion. Did you get one for the first promotion ? Do you get more than this for the business career ?
• Here's a more general thread: [GRO] Milestones stop accomplishing when leaving lot | EA Forums - 11886651 
• By children you mean children age and not infants/toddlers ? Infants toddlers have a thread here: [GRO] Infant/Toddler wont achieve milestones | EA Forums - 5053288 

For milestones, you really need to make a thread for each milestones you are having issues with unless it's all milestones in which case, there might be something else going on that needs troubleshooting more.