Model files defined in .cdsenv for spectre are not loading

Hello,
My understanding is that when launching cadence virtuoso loads different environment customization files in the following sequence:
1. .cdsenv
2. .cdsinit
I wanted to set up model files for spectre using this guideline provided in your support link.
spectre.envOpts modelFiles string "/path/file1.scs /path/file2.scs /path/file3.scs;section3"
I am not getting it to work. What happens that undefined model files are showing up in the model library.
My virtuoso version is:
Version IC6.1.8-64b.500.9
Spectre spectre191
After reading in the forum, I also placed
export CDS_LOAD_ENV="addCWD" in my settings so that the.cdsenv loads from my working directory instead of the home directory.
What am I doing wrong?
Thanks always for your help.