First off, I love your modeler. Thanks for your generous contribution to the community.
That said.... I have a problem. I have a model I created recently. It was working fine for weeks. Suddenly, I have lost the ability to select the relationship in the graphical "Logical ()" tab. I can select the entities fine, but when I click the relationship, it no longer selects and I cannot access the properties for it (or add bends, or move the connectors around). I can access some property detail by navigating through the "browser" tree on the left of the screen.
Using Mac OS x Yosemite 10.10.3
EDIT: To clarify, I have restarted, rebooted and attempted in both maximized and normal mode.
Here's the export from "About Oracle SQL Developer Data Modeler"
About
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Oracle SQL Developer Data Modeler 4.1.0.881
Version 4.1.0.881
Build 881
IDE Version: 12.2.1.0.42.150413.0130
Product ID: oracle.datamodeler
Product Version: 4.1.0.881
Version
-------
Component Version
========= =======
Oracle IDE 4.1.0.881
Java(TM) Platform 1.8.0_45
Versioning Support 4.1.0.881
Properties
----------
Name Value
==== =====
Extensions
----------
Name Identifier Version Status Registration Time Initialization Time Total Time
==== ========== ======= ====== ================= =================== ==========