factory reset is a very critical operation, as it will remove all the gpay details, bank details, cc finger prints, wifi's, mobile comm nw's , all the sms etc., we might get the photos and apps and contacts, which is OK. but the major issue will be with so many other things, which we can't get even if we backup the phone. As some bank apps and payment app's, passwords etc., will need to reregister with the phone fingerprints etc., I don't think any short cut or backup will fix that.
I can live with the attachment not working till the next rom release, and will see if there it gets fixed by itself or any other resolution by anyone else, factory reset will be VERY LAST option in the world. I don't have so much time and energy to fix it back. not an easy task.
If anyone fine any workaround or fix. please update this thread. it will be very useful to many people who are facing this problem. Appreciate it.