When running cucumber tests with n=3 and param -s we observe thread not running tests.

[gpapat26]

Hello

I am observing output for single thread allways , while other 2 are working:
[exec] 0 scenarios
[exec] 0 steps
[exec] 0m0.000s

I usually run something like :

bundle exec parallel_cucumber n=3 -i -s 'some_deep_nested_folder' -o '-p ${cucumber.profile} -t ${cucumber.tag}' features " />

When i m running with the parameter -s to map the execution of single thread with that folder then that folder gets executed and another thread executes all other scenarios while 1 thread is doing no execution.
When the param -s is not used all 3 threads are in use running random scenarios.

How to restrict the execution of file A with one thread while rest of files get the other 2 threads running?
How can I specifically select which tags to run with a thread and the others with some other threads? (if that is possible with tags)

Thank you.

[gpapat26]

My end end goal is lets say that I got 3 seperate folders that I want 1 thread for each to run. What should I type to run it , with tags or folder wise?
Thank you