Im installing hardwood floor, and the mositure level readings are staying divergent between flooring and subfloor, what should i do?
It will take a week at least to get the moisture to move the the direction it needs to go. Be patient it will acclimate.

Some meters have an adjustable scale for hardwoods, softwoods and plywood, etc., make sure the difference is not because of a calibration from one type of wood to another.