Windows 10 troubleshooting
After the initial release of Windows 10 1809 demoted USB 3.0 devices to 2.1, Build 17763.55 fixes USB 3.0 issues. All drivers back to current levels.
When using 500 GB and 1 TB mSATA SSDs, I discover that marginal power mars Win10 USB flash drive access, with drives dropping out or completely inaccessible. Easy fix, though.