This is probably very basic, but I seem to have a problem creating and repering feature classes.

[JulietteDubois]

When I create the new feature class, the folder does not appear in Catalog nor Map. If I try recreating the folder, it tells me the folder already exists. I can't find the folders anywhere in Catalog nor Map. I tried fixing this issue by removing the folders using access as a tool, but the folders seem to still exist in ArcGIS. Has anyone encountered a similar problem?

[JakeSkinner]

Are you creating the geodatabase on a network drive?  If so, try creating the geodatabase on a local drive and see if the issue is still reproducible.  Also, try logging onto your machine as another user and try and reproduce. 

[JulietteDubois]

I am creating everything on a local drive.

I have tried passing the geodatabase to a colleague though a USB drive. She has managed to create feature classes (not with the code name they need, and not inside the feature data set). The second I imported back the material on the drive to my own computer, the created feature classes disapeared and were nowhere to be found.

Everything goes on normally, until i finish creating the feature class: then the geodatabase refreshes and nothing new appears in it.

here are some captures of the process (from the bottom to the top)

[AsrujitSengupta]

If you are OK with creating a new File geodatabase and copy\pasting the data from the existing problematic one to the new one -- try that.

Otherwise, as suggested earlier, please contact Esri Tech Support, so that they can take a look and troubleshoot.

[JulietteDubois]

As this is already the second File Gdb I transfer this content to, I will go on and contact tech support.

Thanks to all of you very much.