Sync & Backup buttons not responding

Describe the bug

Bug: Sync & Backup buttons not responding

on Android 10 device without fingerprint reader
Device: Lenovo TB-X605F
OS: Android 10
DDG version: 5.275.1
Problem:
On this tablet, none of the Sync & Backup buttons respond when tapped. No screen opens, nothing happens. The on/off toggle for sync which is visible on other devices is also missing completely.
The tablet has no fingerprint reader, but Android only offers lock screen options with fingerprint (Fingerprint + PIN, Fingerprint + Pattern, Fingerprint + Password). DDG appears to require fingerprint authentication to activate sync, making it completely unusable on devices without a fingerprint reader.
On another device (Android phone, same DDG version): Sync works correctly, toggle is visible, buttons respond normally.
Expected behavior: Sync & Backup should work on devices without a fingerprint reader using PIN or pattern alone.

How to Reproduce

When tapping any button in Sync & Backup section, nothing happens.

Expected behavior

When tapping any button in Sync & Backup section, nothing happens. The on/off toggle for sync is also missing completely. The tablet has no fingerprint reader, but Android only offers lock screen options with fingerprint (Fingerprint + PIN, Fingerprint + Pattern, Fingerprint + Password). DDG requires fingerprint authentication, making sync completely unusable on this device. On another Android phone with the same DDG version, sync works correctly.

Environment

- DDG App Version:5.275.1
- Device:Lenovo TB-X605F
- OS: Android 10

Start by reproducing the issue in the Sync & Backup section on the Lenovo TB-X605F running Android 10, then compare its behavior with the Android phone where Sync works. Trace the authentication path used when tapping the buttons and verify that PIN or pattern alone can enable Sync & Backup and that the sync toggle appears on devices without fingerprint hardware.