Hi, Wanted to share my solution that worked. Best of all, it just costs as much as a water hose washer !
I had the same exact issue after I replaced the water filter. Returned the original GE one, and got another GE one thinking it was a defect in the filter. That did not work. Then also tried a generic filter from home depot. Even that did not work. So it was clear it was not the issue with water filter.
I agree that the issue is with the filter head assembly. You can either replace the filter head or do a cheap fix by using a water hose washer. I got this idea after watching this YouTube video
https://www.youtube.com/watch?v=cjShdHoiiJw
Though he mentions to use a metal washer, a simple garden hose washer will work as good. Check it out. The video provides more information and shows about the part in the filter head that needs some extra push. A washer in the filter can do the trick.
I am very glad this worked and also to know the root cause of this problem. This appears to be a common problem and one definitely don't have to replace the filter head each time.