Received my Pulse, connected it to the SG app, updated the firmware. Mounted the Pulse vertically on a level rifle confirmed through demo mode in the app. Clicked on calibrate and got the Pulse to display solid green indicating calibrated in the app. After ~90 seconds it shuts off and when I power it on again it's like it's never been calibrated; display is red with lights racing around the edge. Battery is at 100%.
I've tried the short-click / long click method of calibration with no joy.
Any ideas on what I'm missing in getting it to successfully calibrate?