GRAPH : Visibility problem in drow mode bar

Hi, I have a visibility problem when I use draw bar mode.
In the image below my queries mssql (Time series) CATEL and FELIX are almost identical and return the same number of records, however, one has thin bars, the other normal bars! would you have any idea about this problem ?

Thanks for your help !

It is an error on my part, FELIX has returned 2 records in a period of time where it should have returned only one, which changes the scale of the values ​​and therefore the thickness of the bars.