(Fixed in ver 8.4.1) “Copy to clipboard in EMF” does not work for some objects

There is a bug in Astah Professional ver 8.4 that copying UseCase to a clipboard in EMF does not work.
There is a bug in Astah Professional ver 8.4 that copying UseCase to a clipboard in EMF does not work.
From January 15, 2020, connections to Maven’s central repository have been restricted to https.
This may cause errors when using Astah plug-in SDK.
There is a degrade in Astah Professional version 8.2. Some diagram names do not appear inside the diagram frame. Please read the post for the workaround.
When you compare files using [Compare Project], identical models would be detected as conflict.
When Operations are allocated to the Messages in a Sequence Diagram from the BaseClass of lifeline, rearranging the order of those Operations in Class Diagram by mouse will clear out the allocation.
There is a regression in a Sequence Diagram since Version 8.0.
If there are invalid shortcuts (e.x. the file that the shortcut points is gone…etc.) on the Desktop, a “Missing Shortcut” message appears when you open a file chooser through Astah.
An exception error occurs when trying to change the font color of line labels
■Product and Version: Astah Professional, UML and Viewer | Version 8.0 ■Description: It takes long to load .asta files after updating to version 8.0. ■Workaround: Using Java version 1.8.0_144 for Astah can get you out […]
(Mac) Astah freezes when clicking on blank space in the Startup Screen