Hello
I have migrated DB to MariaDB and since morning I have problem, that after clicking to entity I see data only until last reboot. in addition there are empty space between previous reboot.
The energy dashboard and the entity dialog both use information from the statistics tables in your database.
The history plot uses data from the states table.
So it appears that you are having issues with statistics being generated. Got to developer tools → statistics and check to see if there are any issues there that need to be corrected.