Hi Geert, Paolo,
@ Paolo yes the correction were executed the project reloaded same result some are invisible.
@Geert the Integrity checks dealt with connector (duplicate and wrong type) and one duplicate GUID on an ArchiMate_ApplicationComponent, I suspect an import or CSV upload. The correction was done, project reloaded, even a close and re-open, same result some are invisible.
What strikes me is that the visible tables all have t_object.Object_Type = 'Class' whereas the invisible ones have t_object.Object_Type = 'Table'.

GRB_ADP is invisible but GNBS_VlA2005 is visible.
Now, as I understand it the t_object.Object_Type is the same as EA.Element.Type, or am I missing something?
So when I do an csv export these two table both report CLass for Element.Type.?
What is happening here?
GNBS_VLA2005
Class{AD908E5F-3BB2-425d-A700-9BFD4BCB8C9F} table Implemented EAUML::Table EAUML::table SQL Server 2012
GRB_ADP
Class {675834A8-2B9C-407f-ABD7-06F0BE70B2D2} table Implemented EAUML::Table EAUML::table SQL Server 2012
I can try now the obvious and with an SQL update set all the t_object.Object_Type to Class.
Especially since the t_object.Object_type on a different demo DB I just uploaded all report Çlass for t_object.Object_Type.
Question then remains, how did itchange the t_object.Object_Type to Table?
Before I continue with the SQL, any thoughts?
Cheers,
Jan