Simulator crash on View Memory since SDK 4.0.6

Platform: Ubuntu 20.04.3 LTS, dependency install details at bottom

SDK every version from 4.0.6 -> 4.1.0 Beta 1. Works ok on SDK version 4.0.5

The simulator is crashing when selecting File -> View Memory with this error:

ASSERT INFO:
../src/gtk/window.cpp(3792): assert ""m_widget"" failed in DoSetSize(): invalid window

BACKTRACE:
[1] g_closure_invoke
[2] g_signal_emit_valist
[3] g_signal_emit
[4] gtk_widget_activate
[5] gtk_menu_shell_activate_item
[6] g_closure_invoke
[7] g_signal_emit_valist
[8] g_signal_emit
[9] gtk_propagate_event
[10] gtk_main_do_event
[11] g_main_context_dispatch
[12] g_main_loop_run
[13] gtk_main
[14] __libc_start_main

These dependencies were installed to allow the SDK to run:

# install libwebkitgtk from bionic repo
echo "deb http://cz.archive.ubuntu.com/ubuntu bionic main universe" > /etc/apt/sources.list.d/bionic.list
apt update && apt-get install git openjdk-8-jre-headless build-essential sudo wget unzip libxxf86vm1 libgtk2.0-0 openssh-server libusb-1.0-0 libsm6 libwebkitgtk-1.0-0 x11-apps x11-utils nodejs vim xdotool optipng gimp curl