I have the same issue and would like to turn digits off it is does not work with google messages.
When are they going to fix this ... I've been hearing lip service for MONTHS. When I use digits, texts sent do not migrate to the native line ( only received texts so up -- so there is no thread, just incoming).
Also some idiot in tech support told me I had to uninstaller digits ... LOST ALL TEXT THREADS ... thanks for that!!!! ** biting tongue to keep it clean
Either make texts sent from digits post to the native device or give us the ability to download and save/backup texts.
UNDER NO CIRCUMSTANCES SHOULD TECH TELL US TO UNINSTALLER WITHOUT WARNING THAT WE WILL LOSE EVERYTHING --- I lost at least 6 months of CRITICAL texts