Genoduck

I have a 2000 RX300, bought with 66000 miles. Only problem has been to replace the radio antenna. Have had timing belt and pump replaced at 120,000. Love the car. Recently changed oil and oil filter. Usually, the oil filter makes a horrible mess with spilling of oil. However, at last filter change, there was no oil in the filter. Cut it open and oil has been going through as the oitside of the Fram was covered with oil. Put on new filter and drove car a few miles. Checked filter and still no oil in filter. Took to mechanic and they checked oil pressure and it was within Lexus standards. Anyone else with this and is it a problem?