I have been encountered a problem that is -
When i am adding a sub category it fine and showing as expected but when i try to update that category again then slug automatically changed to another.
Example:
Category name:
Lab
slug:lab
& Sub category name:Water lab
slug:water-lab
When i open sub category water lab and hit update then slug changed to water-lab-1
or sometimes it changed to water-lab-lab
I am running wordpress version - 4.4.2 and I've been running some number of plugins currently.