Sync of password doesn't seem to work.
I installed opera into a below new device.
Version of Android: 9.0
Phone model and manufacturer: CPH1983, OPPO
Your version of Opera for Android: 60.0.3004.55063
I reset passphrase with encrypted data since sign-in failed because of passphrase. Then sign-in of both old devices (Windows/Android) success and opera://sync-internals information of both devises is same.
However sign-in of a new devise also successes, only sync of password seems to be failed. In opera://sync-internals, both total/live entries of passwords in type info are null.
Moreover, password manager doesn't seem to work. When filling out form in arbitrary websites, confirmation of password saving doesn't occur.
Config of Opera for Android:
*Sync and backup
Sync and backup: Enabled
Encryption: Use a passphrase
Save passwords: Ask every time
Automatic sign-in: Checked