Saw this happen a number of times with spin-on filters back when I worked in a service station during my college years. The boss taught us all the clean the gasket sealing area on the block with a rag before installing the new filter. If there was a gasket left behind, you'd surely find it this way before it was too late.
The old GM canister filters were really the worst, they would leave the gasket behind every time and they'd be down in a recessed, hard to access area forcing you to pick it out of there with a sharpened awl. Kept one in the shop at all times specifically for this issue.
2013 GT Premium Brembo
MGW, Blow Fish, AM Hood Struts
Tinted, Borla Touring AB, ProCal Tune
Full Shelby/Kicker Audio Upgrade