Bug - after change of data source, data was changed, data source show the same source

Hi, I have multipage Looker studio report, which works with data I uploaded through Excel connector, doing some graphs and tables.
Because I have several clients, I just upload the same Excel file for another client, change the source from first client to second and graphs are changed, tables are changed. Everything seems fine. It´s great, that I just switch files and each page is automatically updated with a new data.

But if I click on graph or table and I look at details on right side of a screen, there is still the name of Client 1 Excel file instead of Client 2.
F5 doesn´t change it.

note: I also had situation, where change of Dimensions source didn´t work. I needed to delete Dimension and set a new one. Then it generated table and graph correctly.

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