Swift - Weird behavior when fetching objects from index

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Hello guys,

I am trying to fetch data from a particular index using a filter to limit the results. When I check the objects manually on the UI, I can see that according to my filter, I should get two results.
Whenever I start my app and try to fetch those objects, it works as expected.

When I try to fetch objects from the same index using the same filter query but different values, I get different objects but again the ones which are expected.

Now here comes the thing. After executing the second query I try to trigger the original first one and I expect to get two objects (as the first try). But this is not the case: Checking the logs confuses me a bit more :slight_smile:

2021-01-05T22:04:18+0100 info com.algolia.InstantSearchCore : InstantSearch.SingleIndexSearcher: received results - index: participation query: "" hits count: 2 in 1ms

Optional(2) // OUTPUT OF hitsSource?.numberOfHits()

2021-01-05T22:04:23+0100 info com.algolia.InstantSearchCore : InstantSearch.SingleIndexSearcher: received results - index: participation query: "" hits count: 7 in 1ms

Optional(1) // OUTPUT OF hitsSource?.numberOfHits()

Optional(1) // OUTPUT OF hitsSource?.numberOfHits()

Optional(1) // OUTPUT OF hitsSource?.numberOfHits()

Here is my code:

class ChallengeContentViewController: UIViewController, HitsController {

    var singleIndexHitsInteractor: HitsInteractor<JSON> = .init(showItemsOnEmptyQuery: true)
    var challengeCollectionView:UICollectionView?
    public weak var hitsSource: HitsInteractor<JSON>?
   ...

    private func setupInstantSearchSettings() {
         singleIndexHitsInteractor.connectController(self)
         singleIndexHitsInteractor.connectSearcher(participationIndexSearcher)
   }

   private func searchParticipations() {
     let filterState = FilterState()
     filterState[or: "groupName"].add(Filter.Facet(attribute: "challengeId", stringValue: 
     challengeObject.id))
     participationIndexSearcher.connectFilterState(filterState)
     participationIndexSearcher.search()
 }...

Could anyone tell me what I am doing wrong?
setupInstantSearchSettings and searchParticipations are called in viewDidLoad()

Thanks in advance!