Multiple Form inheritance problem with v16 R3

Mac OS 10.11.6 - 4D v16 R3 32 Bit

We are experiencing a hard crash in 4D Standalone and 4D Remote when closing a form that has two levels of inheritance.

ie: [Dialogs]Agent_Assets iherits [Dialogs]Agent_Dispatch which inherits [Dialogs]InputForm_StdBackground

These are complex forms in an application that has been around since 2000. The crash logs all reference the same command in the crashed thread. DisposeObjHandle(obj**) - Full crash logs can be provided.

4D v16.1 32 Bit Mac does not crash on these forms when closing. 4D v16 R3 23 Bit Windows does not crash on these forms when closing.

[]19669151;“Screen shot of a typical crash log”[/]