Report Group by issue

Hello Developers,
I’m facing problem while grouping fields in report.
I have one custom module and it has many to one relationship with case.
In custom module i have custom field which i need to do groping.
when i show fields from both tables in reports then groping is not working.

Hey there,

Are you still having issues with this?

I’m not entirely sure how to replicate, would you be able to pass over more info?

(ie, Screenshots of the Fields/Conditions used in the report, that causes issue)

It may just depend on the fields used, reports can be quite fussy when the data is grabbed from multiple locations