The original use case for categories didn’t support duplicated values, so that behavior is “undefined”. It could be a new feature in the future though to support duplicated values.
If I add another raw with name Name “Other”, Discription “Other” and with category “Lan cut”, only this one will be displayed. TestCategroy4 and 3 will not be displayed.
This is just an exp as I have filed like this with a lot of data and it is not presented correctly by RT.
Can you confirm which version of RT you are currently running?
Do you have any duplicate values for the custom field that is based on the parent custom field? As I mentioned previously the categories feature doesn’t support duplicate values which could be causing the strange behavior.
RT is running on: »|« RT 4.4.1-3+deb9u3 (Debian) Copyright 1996-2016 Best Practical Solutions, LLC.
Yes I am having duplicate values for CFs that have different parents. OK, so I guess it is working for some values but not all. Is there quick fix in code for this maybe or any other solution that I could use for this?