The slider of rangenouislider does not appear

Hello.

I have a fresh installation of Joomla 4.3.3 and JL Content Fields Filter 2.0.2.

I have one simple field that should be an integer number between 1 and 10 and I want to be able to filter by it with a slider (rangenouislider) just like the Price filter on your Demo website.
So, as described in the documentation, I created a Text field, I selected "Integer" under "Filter", selected "Range" under "View in the filter", and I selected "rangenouislider" under "Individual layout". However, the slider does not appear in the frontend module, only the two text boxes "From" and "To" - identical to the "range" individual layout.

Can anyone tell me what am I doing wrong?

Any help would be appreciated!