lint_mode: background - not running asynchronously

[nchristus]

SublimeLinter v4.1.1
SublimeLinter-scss-lint c2.0.2

The "background" Lint Mode is behaving like "load_save" and only running on file open and save, not asynchronously.

No errors in console, all other linting aspects work as expected, and other linters behave correctly.

Console:

SublimeLinter: #1 SublimeLinter.sublime-package:747: 'scsslint' is linting '_settings.scss'
SublimeLinter: #1 SublimeLinter.sublime-package:103: PATH:
    /Users/nick/.rbenv/shims
    /usr/local/bin
    /usr/bin
    /bin
    /usr/sbin
    /sbin
SublimeLinter: #1 SublimeLinter.sublime-package:1045: scsslint: _settings.scss ['/Users/nick/.rbenv/shims/ruby', '-S', 'scss-lint', '/app/styles/vendor/ember-power-select/_settings.scss']
SublimeLinter: #1 SublimeLinter.sublime-package:1048: scsslint: cwd: /app/styles/vendor/ember-power-select
SublimeLinter: #1 SublimeLinter.sublime-package:774: scsslint output:
    /app/styles/vendor/ember-power-select/_settings.scss:49:3 [W] ImportantRule: !important should not be used
    /app/styles/vendor/ember-power-select/_settings.scss:50:3 [W] ImportantRule: !important should not be used
    /app/styles/vendor/ember-power-select/_settings.scss:51:3 [W] ImportantRule: !important should not be used
    /app/styles/vendor/ember-power-select/_settings.scss:55:3 [W] ImportantRule: !important should not be used
    /app/styles/vendor/ember-power-select/_settings.scss:56:3 [W] ImportantRule: !important should not be used
    /app/styles/vendor/ember-power-select/_settings.scss:68:3 [W] ImportantRule: !important should not be used
SublimeLinter: #1 SublimeLinter.sublime-package:815: scsslint: No match for line: ''```

[attenzione]

Plugin is not responsible for linting execution