Hey Alex, having a weird issue where the prefill is working for everything except peoplepicker. Nothing special about it, it’s a single peoplepicker to copy to a single peoplepicker, it’s just not doing it. Every other field is copying fine. Any ideas? No console errors.
I need to see a screenshot of the “Prefill values in child” section in your vLookup config. Also make sure the field names are correct and that there is actually a value in the “From” field.