Oil filter housing loose !

[Mikelove]

I serviced my boxster s yesterday and drove it about 5 miles and parked it . This morning i decided to dip the oil and check the level manually before checking the level on the clocks display. spot on. So i looked underneath for leaks. Dripping oil filter housing. I had replaced this with a genuine one from porsche. It was slightly different as it had a metal part in the bottom. I assumed this was a magnet.
Anyway i wiped the new one off that was leaking and " shock horror" it was loose. I spun it undone and took it off for inspection. Expecting to find a crack init. I tightened it by hand and then used the porsche tool to tighten. So i was surprised when it was so loose! Anyone else experienced this??
I just googled the old one and it seems to be an 03-08 one.
My car is a 2000 . tomorrow i will inspect the new one i bought and see ifthe part number matches . This is the second thing that has had an 04 part number on my cars engine. Maybe its had a new engine?