Null values returned for activeTraders and activeTradersChange

[porteron]

When specifying the parameters statsPeriodTo and statsPeriodFrom the api consistently returns null for active traders fields.

https://api.0xtracker.com/apps/brave?statsPeriodFrom=2021-11-17&statsPeriodTo=2021-11-18

{
   "categories":[
      "wallet"
   ],
   "description":null,
   "id":"e9c9d7e5-f688-49d0-94d5-8b14d84a49bb",
   "logoUrl":"https://cdn.staticaly.com/gh/0xTracker/0x-tracker-worker/master/src/attributions/logos/brave.png",
   "name":"Brave",
   "stats":{
      "activeTraders":null,
      "activeTradersChange":null,
      "avgTradeSize":10982.36563720703,
      "avgTradeSizeChange":168.24390635599852,
      "tradeCount":{
         "relayed":0,
         "total":10
      },
      "tradeCountChange":{
         "relayed":null,
         "total":0
      },
      "tradeVolume":{
         "relayed":0,
         "total":109823.65637207031
      },
      "tradeVolumeChange":{
         "relayed":null,
         "total":168.24390635599852
      }
   },
   "urlSlug":"brave",
   "websiteUrl":"https://brave.com/"
}

This is not the case when only using the param statsPeriod: https://api.0xtracker.com/apps/brave?statsPeriod=day