I suppose, something like "Reset to factory settings" or "Reset all camera settings" would be more meaningful instead of ”Update configuration files".

PTZ preset option for E1 Pro is back, thanks!

But, I should mention about the firmware upgrade process. I use Reolink Client for Mac. After the firmware upgrade finished, Reolink Client couldn't login to camera, reporting login failed with wrong password. I had to power cycle the camera and remove my password to be able to login successfully without password. When I open Reolink application from my phone (iOS) it wanted me to set a password. But, I noticed that all the previous settings were lost and I had to set them again. If I sum up, I should say that after the firmware updates, the camera should be power cycled and setting should be done from scratch. I suppose, if configuration were exported before firmware upgrade, then they could be restored, but I haven't done so.

Please do so. I even cannot use PTZ presets in Synology Surveillance Station with E1 Pro.