Here's your problem, I would make sure to download the driver directly and not trust W10 to do this correctly.
https://www.roland.com/global/support/by_product/ua-1g/updates_drivers/5c22f3c6-ccde-43c0-b0d3-3717482ce66b/ From the download page when you click on info about W10
Driver for Windows 10
Your computer automatically downloads the Windows(R) 10 driver from the Internet when a product requiring the driver is connected to the computer.For detailed information about the driver, check "Download File" at the bottom of this page.
* Under normal conditions, the driver installation is completed in several minutes. It may take about 10 minutes depending on the Internet connectivity or if there are other drivers being installed for other devices.
* A problem may have occurred if the device is connected but cannot be used after waiting for 10 minutes. Download the detailed information for the driver and refer to "Troubleshooting."