Created attachment 133321 [details] The frozen eclipse main frame and ghost install frame SUMMARY STEPS TO REPRODUCE 1. launch eclipse 2. in the menu window select action install new software 3. OBSERVED RESULT The modal window install is recognized by the interface but doesn't appear on the screen and freeze the interface of the main window EXPECTED RESULT SOFTWARE/OS VERSIONS Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
The bug comes partially from eclipse, i found it in the eclipse version shipped with fedora 33 (4.16; 2020.06), it is partially corrected in eclipse 4.18M2 (2020.12, to be released in few days). The apparent application freeze was due to a creation of modal window with a width of 0px this is a problem of windows positioning and dimensioning. This bug is related to https://bugs.kde.org/show_bug.cgi?id=374669 https://bugs.kde.org/show_bug.cgi?id=393167
After investigation it appears that the freeze is not one but only that the modal window is created with a width of zero. It is corrected since eclipse 2020.12 (4.18) M2
See this discussion for more informations: https://bugs.eclipse.org/bugs/show_bug.cgi?id=568867