Some engines the dipstick is in a tube so the oil in the tube does not mix well with the oil in the sump. Not sure about yours.
If you want it to mix, take dipstick out and put a piece of hose on the tube and blow on it. This will force oil out of the tube and what comes back in will be from the sump.
Also, a thin layer on the stick might look clear, but in a bucket it will look black. Dip the stick into the bucket of black oil and look at the stick. Might look "clear-ish" on the stick.
Good problem to have, really.