bug: error while fetching data via API (POST)

Hey team,

Graph queries have suddenly started failing without any change being done on the requesting app.

It looks like queries via a POST request will result in an error saying the dataset doesn't contain a field:

{
    "data": null,
    "errors": [
        {
            "message": "Type `Swapped` has no field `timestamp`"
        }
    ]
}

The current dataset ID used for the queries is: CeYhesP82fvU47dLNVHXzSB6iS67eQU3pvUjkyXxaLfU

However, if queries are done using TheGraph Explorer UI, results will be shown as in the following example:

Used queries are the following:

• Query for POST request:

{
			"query": "query SINGLE_CHAIN_TRADES($from: Int, $to: Int) { swappeds( orderBy: timestamp\n    orderDirection: desc,\n   first: 1000,\n    where: {timestamp_lte: $to, timestamp_gte: $from}\n  ) {\n  id\n  sender\n    srcToken\n    amountIn\n   timestamp\n    }\n \n}",
			"variables": {
				"offset": 0,
				"from": 1701694760,
				"to": 1741772040
			}
		}

• Query for UI request:

 {
  swappeds( orderBy: timestamp orderDirection: desc,  
    first: 1000,
    where: {
      timestamp_lte: 1741772040, 
      timestamp_gte: 1701694760
    } ) { 
    id 
    sender 
    srcToken 
    amountIn 
    timestamp 
  } 
} 

Thanks in advance for taking a look!

No source file or test is named. Start by reproducing the POST query against dataset CeYhesP82fvU47dLNVHXzSB6iS67eQU3pvUjkyXxaLfU and compare it with the Graph Explorer request, then trace why the Swapped type differs. Done means identifying the cause of the POST-versus-Explorer behavior and documenting the actionable fix scope.