Windows 10 1903 with 2019-09 Cumulative update (KB4517211) fixes this problem for Switch 11v. The Switch 11v needs Intel SATA AHCI controller driver to version 14.8.16.1063. The detail information is in "Windows 10 update 1809 breaks my acer switch 11v SW5-173" of Acer community. My acer switch 11v now works fine.
Thanks so much for the heads up, I made an installer via media creation tool, fired it up and I can confirm that 1903 now does boot up fine. I'd all but given up on seeing win 10 run again on my switch 11v, I ran Ubuntu for awhile, and most recently ran PrimeOS (android). PrimeOS was fun, although a lot of apps and games would not run on it. I'm glad to be back on win 10 on my acer, although I still have to do some testing to see if it's stable.