Find query to materialized view showing empty result

Working with Data Drivers
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1

I’m using node js to query to the collection which is generated materialized view by aggregation.

Interestingly, the query only works when server starts up.

So, If I query with next code

// inside of event listener callback.
 async () => {
        const result = await dbCli.db('form').collection('materializedView').find().toArray()
        console.log({ result })
        return result
      }

Only first time query has result.
Next query dose not have the correct result but empty array.
Other query to normal collection works just fine. I can keep querying with correct result that case.
Also if I query from api call from outside of server works fine.
It only behave like so when I use the code in callback. I’m properly await the find call.