One issue I see is the use of two forms on the same results page. This will change with V3 (due in a month or two), but, for now, when referring to the results page, having a cloned/duplicated form (having more than one instance of the same form), or multiple different forms, will potentially be an issue, as doing this can mean that they don’t work together and often will conflict with each other. Just be aware that this is possible (likely), so if you have problems with the results not working, that might be why. Normally, we suggest only one form instance on the results page.
You CAN have more than one form on any page other than the results page.
So, to the question, the fields updating is controlled by Auto Count, but Auto Count does not affect range controls (in your case Precio and Graduación). Range type fields do not filter down to take account of other form field choices in the current version of our plugin, although that behaviour may change in V3, which we plan to release in a few months (in the New Year).
This is intentional, as explained here:
https://support.searchandfilter.com/forums/topic/post-meta-field-values-not-showing-correctly-on-woocommerce-product-categories/#post-257013
I am not sure if this answers your questions?
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