AppImage Icon is missing on Kubuntu 22.04 with AppImageLauncher

Recently, I installed the AppImage of Obsidian from the website. However, I found that icons of both Task Bar and Startup Menu are missing after launched/integrated with AppImageLauncher.

Steps to reproduce

  1. Follow the instructions to install AppImageLauncher.
  2. Download the AppImage of Obsidian from Website.
  3. Launch/Integrate the AppImage of Obsidian with AppImageLauncher.

Expected result

Actual result

  • In Task bar:


  • In Startup Menu:



	Obsidian version: v1.5.12
	Installer version: v1.5.12
	Operating system: #29~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Apr  4 14:39:20 UTC 2 6.5.0-28-generic
	Login status: logged in
	Catalyst license: none
	Insider build toggle: off
	Live preview: on
	Base theme: adapt to system
	Community theme: none
	Snippets enabled: 0
	Restricted mode: on


Additional information

Compared to Anytype, the icon of Anytype can be showed correctly in Task bar, but cannot be showed correctly in Startup Menu.