68 383 oil filter w/ anti-drain back valve
I believe there's lots of opportunity for oil to leak down / back prior to the filter. The electric is likely have a bit quicker read than a mechanical.
Do you happen to have a mechanical gauge as well? If not, you may want to install one at least temporarily.
Anti drain does show up in the filter description on Orilley's site....
Then too, there's this thread for your reading pleasure ................
https://www.forbbodiesonly.com/moparforum/threads/napa-gold-filters-ahhhh-no.290702/