For your "Live Gamer Ultra", I see nothing under required specs that AMD/Ryzen is supported? Is this true?
We strongly recommended using Intel chipset if you are using our GC553 to ensure its best performance.
We have confirmed there’s a compatibility issue when you are using B350 (Ryzen 7 1700, MSI B350M Mortar). In case you encounter the compatibility issue when you are using a USB host controller other than the Intel USB host controller, please contact us: TechnicalSupport@avermedia.com along with the HWiNFO.
How to get the logfile from HWiNFO:
Connect your GC553.
Please install HWiNFO (https://www.hwinfo.com/download/), and send create Logfile to us:
*create logfile> XML