I have a Rails 6.1 app with the cssbundling-rails and jsbundling-rails apps.
This is an upgraded app using the asset pipeline.
I need to use bootstrap version 4.6, not latest bootstrap v5.
But rails css:install:bootstrap installs v5.
--UPDATE--
I changed bootstrap to version ^4.6 in package.json, removed bootstrap-icons and ran yarn install.
The problem is my original application.scss isn't loading, the application.debug in the browser tools only includes bootstrap.