I have no idea what the cause is because we modders don't have access to the code you fixed it in, but I can't seem to apply any modded facial attributes to Child sims after the Toddler/Infants/Child...
Ideas
If this get fixed for modders then I will question why they didn't just fix the sliders in the first place. Because many many years ago, all toddlers and children would "grow in height" and I thought it was awesome! Then suddenly it disappeared, was listed as a bug. never actually got "fixed", and was completely forgotten or ignored?
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