Only part of the apps are showing in the menu after removing AppOrder

Hi all,
Since I upgraded to NC25, when I add a new user, only part of the apps are showing in the menu. Even after removing AppOrder.
Impossible now to reset AppOrder config through the GUI.
Anyone would know how to reset it manually through occ or directly in the DB ?
I dare not to migrate to a fresh new config. I expect that migrating the actual corrupted DB to the new applicance will not change anything… And if only migrating data, I will loose all users, shares infos (…)
Thanks for your help !