History - Download data inconsistency

Hi, I have a problem with inconsistency between what I see on graph in history and downloaded data. In history graph for this specific sensor I can read temp (double reading - another mystery) of 15C at 11:05:54, Apr 4, 2024(
01-HA-history-graph
). When I export data for this graph view (History - download data ) I cannot find this exact value"s", and what is more exported data start/end with different time than what is filtered out in graph. See place in data where searched value should be found


Did someone experienced same problem?
Why is this integration “doubling” data?

System specification: Core
2024.3.3
Supervisor
2024.03.1
Operating System
12.1
Frontend
20240307.0