import-module failing with latest BIOS release

We've been using the Dell Command | Powershell Provider for a while now on our Latitude 7420's.

Normally running the 'import-module DellBiosProvider' command imports the module and away we go.

Since the release of BIOS 1.19.2 everytime we try to import the module we get an error indicating "attempted to read or write protected memory".  Dell recently released BIOS 1.20 with the same result

If we downgrade to BIOS 1.18.0 or below the import module command works as expected.

Has anyone else seen this?

Thanks