Valarea POD not start after changing DPI settings of display or after adding a second display

Changing DPI or video card resolution will require to run Valarea POD Config Wizard or kill ValareaPOD.exe and whiteboard.exe and cancel config_display.json file from c:\programdata\ValareaPOD\launcher\ folder and than restart Valarea POD. If you have multiple displays setup scenario it's mandatory to set the same DPI on all the screens.

Enabling BLE proximity i'm not able to see my personal calendar and my drive

Check that your hardware support BLE 4.0 proximity by following this guide