Unfortunately, at the moment it is difficult for us to give an estimated time when this will be fixed.

We develop many components and plugins at the same time. Therefore, we are not able to fix all bugs at once. In addition, we must ensure that our package is updated to the latest version of Bootstrap every time a new version of BS is released. This often takes a long time if BS makes a lot of changes.

Recently, we focused on improving a few components that have been waiting for fixes for a long time. We will also get to work on the Multi Range Slider soon, but as I said, I can't estimate when exactly it will be fixed.