dsc_lite : Runs fail with invalid path for ENV['lib']

I am finding that Puppet runs fail with this error:

Error: /Stage[main]/Profiles::Rds/Dsc[xRDSessionDeployment]: Could not evaluate: Bad configuration for ENV['lib']=C:\Program Files\Microsoft Visual Studio\DF98\IMSL\LIB;C:\Program Files\Microsoft Visual Studio\DF98\LIB;C:\Program Files\Microsoft Visual Studio\VC98\LIB - invalid path

I'm getting this error even though all of the paths in 'lib' are valid.

It is failing on a couple of different dsc_lite resources (all of the dsc_lite calls for that node).

And I am able to reproduce the problem on a test server by creating the 'lib' environment variable. I tried having a path with no spaces in it and tried using a forward slash instead of backslash but I still get the error.

The problem appears to have started when we upgraded dsc_lite to 2.0.1

Nathan.