https://bz.apache.org/bugzilla/show_bug.cgi?id=66046
--- Comment #2 from logo...@gmx.at --- Seems to be a problem with the used java version: OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.5+10). After upgrading to a newer version of Java 11 everything works fine and GUI is responsive again: OpenJDK Runtime Environment Temurin-11.0.15+10 (build 11.0.15+10). -- You are receiving this mail because: You are the assignee for the bug.
