I am also haviing the same issue after the upgrade.
Pretty sure the drive was NOT REFS as its connected to a Windows 7/Windows Embeded Standard x64 system.
I DID NOT apply the code below that will be my next step
Add the below to this file: C:\ProgramData\StableBit CloudDrive\Service\Settings.json
"GoogleDrive_ForceUpgradeChunkOrganization": {
"Default": true,
"Override": true
}
I used BETA version 1346 incase that helps anyone.