iamthedank007I had this issue and solved it by dowloading the drivers and firmware from https://moondroplab.com/en/download
note that after doing this, i believe the moonriver 2 will be in low gain instead of the default high gain. Still enough power for iems and sundara though.
FunTimeThank you for this information managed to flash the firmware and update the driver but now cant configure over VIA :( all keys are good though..
iamthedank007try this:
go to https://moondroplab.com/en/download and download Firmware V1.14
Extract the JSON file somewhere.
In chrome browser visit https://usevia.app/
go to the "Settings" tab
turn on "Show Design Tab"
switch to "Design" tab and drag drop the JSON into the box
a pop up should appear allowing you to connect the Moondrop DASH
Now you should be able to change keys on the "Configure" tab
Please let me know if this helped solve your problem
If that doesn't work try using the VIAL firmware(from the download site) and website