Bug report: All variables in categories = duplicate

[mbelarouci]

Steps to recreate:
0. Make sure “Show empty sections” is switched off (in eye next to mini search bar)

1. Create object
2. Create 2 variables in object
3. Assign both variables to the same category
4. Bug

[Andrej730]

Also https://forums.unrealengine.com/t/unsorted-duplicated-weird-categories-bug-in-blueprints-present-since-unreal-2014-4-3-or-earlier