Smart filter Bitrix does not filter on one property, but filters out the rest. How to be?

Dear friends, please tell me. There site dicentre.ru/katalog/sotovye_telefony it has smart filter, which filters fine, for all properties, except "OS Version". Who may have any ideas why this is happening? Already broke the head. Facetie indexes are altered, the cache dropped... the Most notable is that when you select a filter of any OS, the filter itself shows that he found such OS n is the number of elements, but in the product list does not display them, though with the rest of the properties no such problem....
June 10th 19 at 15:15
1 answer
June 10th 19 at 15:17
Solution
Get rid of the plus in the url:
/katalog/sotovye_telefony/filter/versiya_os-is-android+6.0/apply/
/katalog/sotovye_telefony/filter/versiya_os-is-ios+8.0/apply/

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