The department names were created using all caps. When viewing the attribute after changing and saving to mixed case, it is still all caps.
CyberStation (all versions)
Trying to change Department attribute from all caps to mixed case. The change will not save.
When changing just the case of an attribute (like Department) and saving it, it will revert to what you had before the change because CyberStation does not regard a case change as a change.
If you want to change the department, for example, from pss to PSS you need to change to something with different characters like pss1 and save it. Then change it to PSS and save it. Now it will be PSS.