I fed my child mermaid six bowls of yogurt before toilet and bath to sleep. However during the night she 'was taken away because of issues'. The bars for food and sleep are permanently yellow even when maxed out, when empty the bars turn green. I tried a restart which sometimes fixes the issue, not this time though. No food, whether brought from a store or taken from a party table or even from the chill box fills the bar properly any more.
She has a sister who is not a mermaid and all her bars are normal and stay solid overnight. It started after I completed my mermaids aspiration (whiz kid).
Mermaids are sims 4 marmite in this game. Personally I quite like them, dull gameplay wise though. x)
I do play with some CC content, but it's mostly static cosmetic objects and a little clothes;
Triplis_quitorjoinschool
LittleMsSam_LiveInBusiness
Are both excellent mods that should be melded into game already!