There is a problem with the creation of ruby_stubs with the remote SDK > SSH. (See https://youtrack.jetbrains.com/issue/RUBY-20579).
Since everything not related to the ruby_stubs in RM works well, I suppose that if there is any workaround or command that would allow me to create the ruby_stubs needed, I would be able to use RM with the app setup that I need now, without waiting weeks or months in order to get a release with the fix.
Any help would be appreciated. Thanks.