Neato Botvac D80 does not save time or schedule settings

Neato D80 Botvac does not save time or schedule settings. The D80 keeps switching to 24 hour time instead of 12 hour time. It also does not save my schedule changes.

If I change the time, or change the schedule and do a power cycle, the D80 reverts to the default schedule and 24 hour time. The same occurs after changing the settings and then letting the D80 sleep on the charger.

My Troubleshooting:

- Replaced the Battery with Neato OEM replacement battery

- Reset the D80 using the instructions in this link: https://support.neatorobotics.com/hc/en-...

- Re-calibrated the battery by selecting "New Battery" under Support

- Tried adjusting the settings both on and off the charger base

Is there a backup battery or memory module inside the D80 that needs to be replaced in order for my settings to save?

Thank you,