Why "Get Transfers Of An Account" misses particular transfers

When I use this method to collect all transfers in some time period, it returns empty "results" array despite the fact that there are transfers in this period. For example, I scan wallet for transfers in period from 1710730800 to 1710738000 and it sends me empty response, but if you look by yourself there are plenty of transfers in between those timestamps and their timestamps exactly between those I specified.