Closing the programm with Alt + F4 or X doesn't end the process

[reneas]

Describe the bug
When closing the program it still shows in systemmonitor and it still drains resources. Even after waiting some minutes. This effect can stack, meaning there can be mutliple running instances of Fusion that take up the whole RAM of the system.

To Reproduce
Steps to reproduce the behavior:

1. Start Fusion 360
2. Close Fusion 360 with Alt + F4 or clicking the X in the top bar
3. Check Systemmonitor
4. See Fusion process still running

Expected behavior

1. Start Fusion 360
2. Close Fusion 360 with Alt + F4 or clicking the X in the top bar
3. Check Systemmonitor
4. No Fusion process shown

Screenshots

Desktop:

• Version number of Autodesk Fusion 360: 2.0.18460 x86_64
• Graphics card model + Graphics card driver:

sudo lshw -c video
  *-display                 
       description: VGA compatible controller
       product: CometLake-U GT2 [UHD Graphics]
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       logical name: /dev/fb0
       version: 02
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
       configuration: depth=32 driver=i915 latency=0 resolution=1920,1080
       resources: irq:136 memory:80000000-80ffffff memory:60000000-7fffffff ioport:3000(size=64) memory:c0000-dffff

• Operating system: Kubuntu 22.04
• Desktop environment: KDE
• OpenGL-Mode