QNapi-0.2.3-x86_64.AppImage not running on Fedora 33

[ArturB]

Hi,
current stable QNapi AppImage is not running properly on Fedora 33.
First, it requires to manually install system-wide dependencies: libidn.so.11 and libkrb5.so.26, which should not be the case with AppImage. Moreover, after installing these libraries manually with package manager, AppImage still fails to start:

./QNapi-0.2.3-x86_64.AppImage                
This application failed to start because it could not find or load the Qt platform plugin "xcb"
in "".

Available platform plugins are: xcb.

Reinstalling the application may fix this problem.
[1]    4424 IOT instruction (core dumped)  ./QNapi-0.2.3-x86_64.AppImage

It looks like some trivial internal problem with Qt plugin search path. The same is true for 0.2.4 beta.
What can I do to resolve the issue? And can I expect, that downloadable AppImage will be fixed?