Yellow color from brand new Pre-Seasoned Lodge Cast Iron griddle (before seasoning or even heating). Is this normal?
If it’s kinda powdery, it’s likely rust.
Not quite fully polymerized oil tends to be orangeish, but you usually can’t see it unless it’s your first layer over shiny bare metal, and I wouldn’t expect it to rub off on a paper towel like that
I suspect that you’re going to need to strip and re-season your pan.  You only do that first deep scrub with pans that are waxed for shipment, not for pre-seasoned pans