FDM Graphql query returning error when certain combination of filters are passed

We multiple are seeing 408 response code from graphql query api. There are multiple combinations of filters which are not working. For eg the below one returns 408, i think the problem is with the array length of filter entity.entityName. If the array length is 2 it works else it is not working.

query MyQuery {
          listTimeSeriesRef(filter:{and:[{entity:{entityType:{in:["NAVIGATOR","SCREEN_CFG_REF"]}}},{property:{in:["TUBING_TEMP"]}},{entity:{entityName:{in:["Process.ReAllocation","Analysis Point by Desks","Downtime.GroupDowntime.DateTime.Subsystem"]}}}]}) {
            edges {
              node {
                property
        
entity{
        lastUpdated
        entityType
        entityName
        }
              }
            }
          }
        }