# FS\_Test::ID is not initialized properly **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** Struct, unreal-engine, bug-report, CPP, question\ **Created:** [May 19, 2022, 1:47am UTC](https://forums.unrealengine.com/t/fs-test-id-is-not-initialized-properly/560690 "2022-05-19T01:47:11Z")\ **Posts on this page:** 1\ **Showing post:** 12
**Author:** ![Roy\_Wierer.Seda145](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/roy_wierer.seda145/32/906551_2.png) [@Roy\_Wierer.Seda145](https://forums.unrealengine.com/u/Roy_Wierer.Seda145)\ **Post date:** [July 23, 2022, 1:56pm UTC](https://forums.unrealengine.com/t/fs-test-id-is-not-initialized-properly/560690/12 "2022-07-23T13:56:30Z")
Related… > [@Properties disappear from datatable editor view when categories are modified](https://forums.unrealengine.com/t/datatable-no-longer-shows-70-of-the-struct/612438): > > When opening the datatable, the row type displays as “S\_SomeStruct S\_SomeStruct” (twice!). Properties have been added with categories, of which only one category shows in the row editor. I tried: Data can still be exported and reimported , JSON is complete. Cleared all derived data cache (appdata / project / engine) Cleaned the entire project, rebuilt with VS. Created a new datatable with the same struct, same result. Added a new property of the missing category, still not showing up. UPROP… “Not initialized properly” warning now showing on any type even booleans if a struct / datatable bugs somehow. All affected properties are within datatables. --- _[View the full topic](https://forums.unrealengine.com/t/fs-test-id-is-not-initialized-properly/560690)._