We use ArcGIS 10.3.1 with Oracle11g on Linux.
We can open a clean ArcMap, open an application connect to the database, drag any layer and save the MXD.
The layer is visible and looks fine.
When we close ArcMap and try to reopen the MXD (by double click or open project from ArcMap) ArcMap just crash.
The same process works when we use direct connect.
The first process worked fine until 3 days ago but the Linux and Oracle people say they change nothing (surprise…).
We know we should use direct connect but we have many old MXD's that uses application connect that we cannot even fix them.
The only thing is the logs are status 8 (Lost Client).
We know we need to start SDE with debug mode and check oracle errors but this is production server so it will take some time.
Anybody has any idea what can cause such a problem?