Crash when loading 2 Examples consecutively and deselecting the first one

[theRealSuperMario]

Steps to produce the result (see Animation).

1. Load Triangles
2. Load Spheres
3. Uncheck Triangles

Error thrown

Triangles parsed correctly.
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by jogamp.opengl.awt.Java2D$2 (file:/Users/sandrobraun/.m2/repository/org/jogamp/jogl/jogl-all/2.0.2/jogl-all-2.0.2.jar) to field sun.java2d.opengl.OGLUtilities.UNDEFINED
WARNING: Please consider reporting this to the maintainers of jogamp.opengl.awt.Java2D$2
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2020-09-28 21:53:47.680 java[27398:626582] WARNING: NSWindow drag regions should only be invalidated on the Main Thread! This will throw an exception in the future. Called from (
	0   AppKit                              0x00007fff36c8ce19 -[NSWindow(NSWindow_Theme) _postWindowNeedsToResetDragMarginsUnlessPostingDisabled] + 371
	1   AppKit                              0x00007fff36c74842 -[NSWindow _initContent:styleMask:backing:defer:contentView:] + 1416
	2   AppKit                              0x00007fff36c742b3 -[NSWindow initWithContentRect:styleMask:backing:defer:] + 42
	3   libnativewindow_macosx.jnilib       0x00000001af1260c8 Java_jogamp_nativewindow_macosx_OSXUtil_CreateNSWindow0 + 440
	4   ???                                 0x00000001185cd330 0x0 + 4703703856
)
Time for visualization: 0.970345951s
-------------------------------------
Triangles parsed correctly.
Time for visualization: 0.03234999s
-------------------------------------
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007fff7269781d, pid=27398, tid=775
#
# JRE version: OpenJDK Runtime Environment Zulu11.41+23-CA (11.0.8+10) (build 11.0.8+10-LTS)
# Java VM: OpenJDK 64-Bit Server VM Zulu11.41+23-CA (11.0.8+10-LTS, mixed mode, tiered, compressed oops, g1 gc, bsd-amd64)
# Problematic frame:
# C  [libobjc.A.dylib+0x681d]  objc_msgSend+0x1d
#
# No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /Users/sandrobraun/Projekte/multnano/tkunerlab_suresim/hs_err_pid27398.log
#
# If you would like to submit a bug report, please visit:
#   http://www.azulsystems.com/support/
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

OS Info:

• macOS
• openjdk 11.0.8 2020-07-14 LTS
  OpenJDK Runtime Environment Zulu11.41+23-CA (build 11.0.8+10-LTS)
  OpenJDK 64-Bit Server VM Zulu11.41+23-CA (build 11.0.8+10-LTS, mixed mode)