Plugin reports misleading rubocop path used

[Epigene]

what happens
If I misconfigure my rubocop.yml and save a ruby file to trigger linting, vscode-rubocop shows some random rubocop path /Users/augusts/.rvm/gems/ruby-2.3.4/bin/rubocop in the warning message.

I don't think I have Ruby 2.3.4 installed, though maybe it's some system version.

what I expected to happen
vscode-rubocop should report the actual rubocop path used, which is /Users/augusts/.rvm/gems/ruby-2.7.1/bin/rubocop, since I have "ruby.rubocop.executePath": "/Users/augusts/.rvm/gems/ruby-2.7.1/bin/" in settings.

env
macOS Catalina 10.15.7
vscode-ruby-rubocop v0.8.5

$ code -v
1.51.1
e5a624b788d92b8d34d1392e4c4d9789406efe8f
x64

$ rvm list
   ruby-2.5.1 [ x86_64 ]
   ruby-2.5.3 [ x86_64 ]
   ruby-2.6.1 [ x86_64 ]
   ruby-2.6.3 [ x86_64 ]
=* ruby-2.7.1 [ x86_64 ]