No tests are beeing run

Hi,

Using version 20200731.1, WP 5.5.1 on a localhost. In wp-config I have debug to true.
When I run the themecheck, none of the tests run:
The message is:
Running 0 tests against Recycle using Guidelines Version: 20200731 Plugin revision: 1

I am not sure why this happens. Any ideas? Have you come across such issue before?

Thank you for the plugin BTW.
It saved me from a lot of my own bugs in the past.
Cheers!