If it is not overfilled with oil, it sounds like something went amiss with the new rings/piston.
It could of scored the wall, or broke a ring, or both
Was it a rebore with a new piston? did you do it yourself or had it done?
I'd pull the piston and have a look see, and measure to make sure things are right,or if done by a shop, talk to them
Wouldn't be the first time something went bad or you were provided with the wrong parts.
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