Engine oil on prop blades front & rear

[Jhogan0101]

Removed the props for some maintenance on the plane.
They sat on top of 5 gal buckets with studs pointed down for about 6 months.
Before they were reinstalled, the inner o ring (a1633-3) on each was replaced and props/crank were desludged with mineral spirits.
After reinstallation, the props now have eng oil (not red) on the roots of the prop blades on front and rear.
Any ideas as to why this is happening? Have run about 15 hours since reinstallation and still happening.

Models
D2AF34C59
D2AF34C61