Toddlers will now be able to successfully complete the Studied Numbers milestone.
Fixed in Patch 1.97.42/1.73
If you're still experiencing this issue, please create a new thread.
I think the issue is related to aging sims up from Infant to Toddler and if you get any bonus skill levels from Top-Notch Infant. Once your sims become a toddler, the milestones are only counting how many times you've leveled up, not what the actual skill level is. So if you start at level 1 and get to level 5, you've only leveled up 4 times in the game's eyes. Not 5.
I resolved this by cheating my levels down and back up again. I will note, in the case of Communication I had to exit and reenter the game for it to acknowledge the level up the second time.
stats.set_skill_level Skill_Toddler_Thinking #
stats.set_skill_level Skill_Toddler_Communication #
stats.set_skill_level Skill_Toddler_Imagination #
stats.set_skill_level Skill_Toddler_Movement #
stats.set_skill_level Skill_Toddler_Potty #
