magento2 – ElasticSearch does not return correct bucket information

I have 2 queries with elasticsearch that behave very differently with regards to the price bucket information

A first query with no filter returns all the expected info for the price bucket:

"price_bucket" : {
      "count" : 1190,
      "min" : 0.0,
      "max" : 239.95,
      "avg" : 0.6719663865546218,
      "sum" : 799.64,
      "sum_of_squares" : 102326.4176,
      "variance" : 85.53704739382812,
      "variance_population" : 85.53704739382812,
      "variance_sampling" : 85.60898771964294,
      "std_deviation" : 9.248624081117587,
      "std_deviation_population" : 9.248624081117587,
      "std_deviation_sampling" : 9.252512508483463,
      "std_deviation_bounds" : {
        "upper" : 19.169214548789796,
        "lower" : -17.82528177568055,
        "upper_population" : 19.169214548789796,
        "lower_population" : -17.82528177568055,
        "upper_sampling" : 19.176991403521548,
        "lower_sampling" : -17.833058630412303
      }
    },

Instead, when searching for the word ‘red’, the results are fine but the price_bucket in the aggregations node is returning barely any information:

"price_bucket" : {
      "count" : 48,
      "min" : 0.0,
      "max" : 0.0,
      "avg" : 0.0,
      "sum" : 0.0,
      "sum_of_squares" : 0.0,
      "variance" : 0.0,
      "variance_population" : 0.0,
      "variance_sampling" : 0.0,
      "std_deviation" : 0.0,
      "std_deviation_population" : 0.0,
      "std_deviation_sampling" : 0.0,
      "std_deviation_bounds" : {
        "upper" : 0.0,
        "lower" : 0.0,
        "upper_population" : 0.0,
        "lower_population" : 0.0,
        "upper_sampling" : 0.0,
        "lower_sampling" : 0.0
      }
    },

Query red filter

curl -X GET "localhost:9200/_search?pretty" -H 'Content-Type: application/json' -d'
{"from":0,"size":10000,"stored_fields":["_id","_score"],"sort":[{"_score":{"order":"desc"}}],"query":{"bool":{"must":[{"terms":{"visibility":["3","4"]}}],"should":[{"match":{"sku":{"query":"red","boost":2}}},{"match":{"_search":{"query":"red","boost":2}}},{"match":{"name":{"query":"red","boost":6}}},{"match":{"sku":{"query":"red","boost":7}}},{"match":{"description":{"query":"red","boost":2}}},{"match":{"short_description":{"query":"red","boost":2}}},{"match":{"manufacturer_value":{"query":"red","boost":2}}},{"match":{"status_value":{"query":"red","boost":2}}},{"match":{"url_key":{"query":"red","boost":2}}},{"match":{"tax_class_id_value":{"query":"red","boost":2}}},{"match":{"attr_16gb_premio_micro_sd_card":{"query":"red","boost":2}}},{"match":{"battery":{"query":"red","boost":2}}},{"match":{"bluetooth_speakers":{"query":"red","boost":2}}},{"match":{"brand_value":{"query":"red","boost":2}}},{"match":{"camera":{"query":"red","boost":2}}},{"match":{"cellular_network_value":{"query":"red","boost":2}}},{"match":{"clothing_type_value":{"query":"red","boost":2}}},{"match":{"color_value":{"query":"red","boost":2}}},{"match":{"size_value":{"query":"red","boost":2}}},{"match":{"data_100mb_12mnths":{"query":"red","boost":2}}},{"match":{"data_100mb_6mnths":{"query":"red","boost":2}}},{"match":{"data_200mb_6mnths":{"query":"red","boost":2}}},{"match":{"dual_sim":{"query":"red","boost":2}}},{"match":{"external_memory_slot":{"query":"red","boost":2}}},{"match":{"facebook":{"query":"red","boost":2}}},{"match":{"fm_radio":{"query":"red","boost":2}}},{"match":{"free_airtime":{"query":"red","boost":2}}},{"match":{"free_cover":{"query":"red","boost":2}}},{"match":{"free_data":{"query":"red","boost":2}}},{"match":{"free_sdcard":{"query":"red","boost":2}}},{"match":{"free_starter_pack":{"query":"red","boost":2}}},{"match":{"free_whatsapp_3gb_300mb":{"query":"red","boost":2}}},{"match":{"free_whatsapp_3gb_600mb":{"query":"red","boost":2}}},{"match":{"handset_ram_size":{"query":"red","boost":2}}},{"match":{"headset":{"query":"red","boost":2}}},{"match":{"image_name_label":{"query":"red","boost":2}}},{"match":{"mp3_player":{"query":"red","boost":2}}},{"match":{"os":{"query":"red","boost":2}}},{"match":{"otg_adapter":{"query":"red","boost":2}}},{"match":{"premio_micro_sd_card_16gb":{"query":"red","boost":2}}},{"match":{"product_attribute":{"query":"red","boost":2}}},{"match":{"product_decal":{"query":"red","boost":2}}},{"match":{"protective_cover":{"query":"red","boost":2}}},{"match":{"screen_protector":{"query":"red","boost":2}}},{"match":{"screen":{"query":"red","boost":2}}},{"match":{"tempered_glass":{"query":"red","boost":2}}},{"match":{"torch":{"query":"red","boost":2}}},{"match":{"two_back_covers":{"query":"red","boost":2}}},{"match":{"whatsapp":{"query":"red","boost":2}}},{"match":{"_search":{"query":"red","boost":2}}},{"match_phrase_prefix":{"name":{"query":"red","boost":2}}},{"match_phrase_prefix":{"sku":{"query":"red","boost":2}}}],"minimum_should_match":1}},"aggregations":{"price_bucket":{"extended_stats":{"field":"price_0_1"}},"category_bucket":{"terms":{"field":"category_ids","size":500}},"manufacturer_bucket":{"terms":{"field":"manufacturer","size":500}},"brand_bucket":{"terms":{"field":"brand","size":500}},"cellular_network_bucket":{"terms":{"field":"cellular_network","size":500}},"clothing_type_bucket":{"terms":{"field":"clothing_type","size":500}},"color_bucket":{"terms":{"field":"color","size":500}},"size_bucket":{"terms":{"field":"size","size":500}}}}
'

Query no filter

curl -X GET "localhost:9200/_search?pretty" -H 'Content-Type: application/json' -d'
{"from":0,"size":10000,"stored_fields":["_id","_score"],"sort":[{"_id":{"order":"desc"}}],"query":{"bool":{"must":[{"terms":{"visibility":["2","4"]}}]}},"aggregations":{"price_bucket":{"extended_stats":{"field":"price_0_1"}},"category_bucket":{"terms":{"field":"category_ids","size":500}},"manufacturer_bucket":{"terms":{"field":"manufacturer","size":500}},"brand_bucket":{"terms":{"field":"brand","size":500}},"cellular_network_bucket":{"terms":{"field":"cellular_network","size":500}},"clothing_type_bucket":{"terms":{"field":"clothing_type","size":500}},"color_bucket":{"terms":{"field":"color","size":500}},"size_bucket":{"terms":{"field":"size","size":500}}}}
'

My problem happens with Magento ver. 2.4.1 and ElasticSearch 7. Any insights on resolving this issue will be very appreciated.