I couldn’t get no sound out of one of my H90’s after updating, so I did a H90 reset and it worked for me! Just make sure you create a backup if needed by going into H90 control and the top left thing with 3 lines in series, click that and click back up device.

“Press and hold all three Quick Knobs [3 knobs below screen] while inserting the power cable until the text “Performing factory
reset” appears on the H90’s screen”

 Warning
A Factory Reset will erase all User Lists, Programs, and Presets. This will also reset the System and
Tempo settings. This will not downgrade the H90’s software.