There are no checkboxes when the views_selective_filters filter is added.

I think I've found some draft solution on local test site. Improve condition in ViewsBulkOperationsBulkForm::init():

    // Don't initialize if view has been built from VBO action processor.
    if (!empty($this->view->views_bulk_operations_processor_built) || !empty($this->view->selective_handler_signature)) {
      return;
    }

So we need somehow remove VBO field from $view_copy before executing it in Drupal\views_selective_filters\Plugin\views\filter\Selective::getOids().

Any ideas how it would be better to do?

Thanks!

I see that VBO field is already deleted before executing $view_copy.
Maybe we can introduce some new view property e.g. do_not_init_vbo_form so other modules like views_selective_filters can use it?

and we could have condition like?

   // Don't initialize if view has been built from VBO action processor or other modules which do need to init VBO form.
    if (!empty($this->view->views_bulk_operations_processor_built) || !empty($this->view->do_not_init_vbo_form)) {
      return;
    }

I can confirm the same issue.

Adding a exposed filter using views_selective_filters → module the checkboxes are not shown.

Did you found a solution yet?