Rubymine tests can no longer be run individually using the gutter run icons

In Rubymine there used to be icons for running tests next to line numbers. After running the project on a new laptop, they are gone.

Tried to add config for tests and saw that the rspec-rails gem is not installed.

Went into Rubymine settings and saw that default gemset is used. And I have a separate gemset for my project.

Switched to the project gemset.

And icons for running tests appeared next to the line number. Now you can run each test separately directly from Rubymine.