Compatibility with WPML

Hi,
I’m using Comet Cache with Wpml and it seems only pages in main language are cached (I check it browsing cache directory).
I read on WPML Comet Cache is compatible with WPML
Why it doesn’t work?
Best regards

I replied to your duplicate question here: https://wordpress.org/support/topic/compatibility-with-wpml-50/#post-9716997