Cannot send SMS (5.1.1 Lollipop)

I recently rooted my Z2 (D6503) and updated to latest version (23.4.A.1.232) and since then i cant send sms throgh default messaging app. I can however receive incoming messages without any problem. I tried Google Messenger but the problem is same. However when I use Hangout as default app for SMS it can send SMS as well. It's been very confusing as to where lies the problem with default messaging app and google messenger as i want either of it to be the default messaging app.
Any help would be highly appreciated.

thanks