SoapUi GUI with visual artifacts by request windows

Hi all,

Have an issue with the gui of SoapUi 5.7.1. The GUI gets request windows with visual artifacts. See the pic. Mouse over any menu or toolbar item causes these visual artifacts.

OS: Debian 12, Gnome 44.4.3, Wayland and X11

Java:

java -version
openjdk version "21-ea" 2023-09-19
OpenJDK Runtime Environment (build 21-ea+34-Debian-1)
OpenJDK 64-Bit Server VM (build 21-ea+34-Debian-1, mixed mode, sharing)

Thanks,