Hi, I am using SQL Developer (version 19.4 on macOS/java v8 Update 241)to start Data Modeler but when I work in Developer a while, opening a model (File - Data Modeler - Open) and selecting the .dmd won't show the Data Modeler browser tab. I noticed that the to toolbar does change to show that relational model icons but no view for the model. I also tested View - Datamodeler - browser to no avail. Closing SQL Developer and starting with opening the model works. Interestingly the Data model browser tab does not stick, if I close and re-open it is not coming back even if I left it open on close, the other tabs do come back (DBA - DBMS Output...).
Thanks
Jean-François