Go to setting --> apps--> Samsung Pass (click on the 3 dots on the right hand corner) --> uninstall updates. This will reset Samsung Pass, which erase all of saved passwords but will definitely fix the issue.
Just because some put a cover on screen, now we all have to pay the price for a few. Cannot use for banking now thanks to these few who have opted to use a screen protector on their screen. Everyone knows , stop killing the features the I bought this phone for. If they want to protect their screen they should be advised anyone can login on the phone.
STOP THE PROTECTION FOR THE MASSES WHO ARE YOU NO USING A SCREEN protectors, AND HAVE GOTTEN ACCUSTOM TO FINGERPRINT.
I disabled my Wifi connection so only cellular data was used, and then it worked. I have seen that with several apps that they only seem to work over the cellular service or Wi-Fi service (particularly for Smart home devices). Try that and see if it works.