in few devices sms notification is not received while screen off
the issue was in few of language (one of Francais (France)), now it's fixed in this MR
install an APK >> update Setting (Languages & Input) >> Languages >> Add a Language >> Select Francais >> Select France >> drag Francais language to top 1st one .
received an SMS Notification, also test Crash in Message app >> Side Menu (navigation draw) >> Settings>> Tap on Notifications (check is this screen open or Crash)
Test procedure explained
Tested on fresh install
Tested applied as an update