Sorting & grouping error

But every randomly on some days and on some devices / systems the order is completely disrupted and distorted reasons being very unknown. Here, the Services & their kinds are sorted out to be at the top of the table followed by Material - Which is completely incorrect.


Currently I have understood that by Reloading the page ie. editing and saving the same report again the issue is resolved. But that is just temporary if i may say.

Can anyone assist with any part of the settings or filtering that I may be missing due to which this is caused.