Thanks. Yes, both same version with yours.
Latest update for my P3XL:
ActiveSG: 1.9.1
After uninstall/re-install a few times, now it is working
SingPass Mobile: 1.0
SingPass replied my email, explained about security etc asked me not to Jailbreak! and re-install. Also provided a hotline number to call for further question.
I called the number and had a hard time explaining to the girl that the Google Pixel 3XL is an android phone. She said for android phone, SingPass Mobile only can support newer models like Samsung Note 9 and Galaxy, some HuaWei models etc. She insist that Google Pixel 3XL is NOT android so is not supported then check with someone else and come back said it is too old model cannot support!
I told her that for the first 2 days it had worked fine but now is not working. Went to check with someone else and called me back and asked how did I transfer my previous data from iPhone, I told her by direct cable connection, again she blur blur. Check with someone again and called me back said because I had installed other apps which will cause SingPass Mobile to clash and wanted me to delete everything and try again. I told her that this is a known problem as described in Google Play
"UPDATE (24/10): We are looking into the "settings altered" alert prompt reported by our users. The app was designed with stringent security measures to safeguard our SingPass accounts. We kindly ask for your patience while the team investigates more based on the reports received so far. Thank you!"
I said since the first 2 days which was working well I did not install any new apps, then she put me on hold and I waited and waited until the line cut off.
Pity her for having to handle such cases as there are so many different androids around.