AppImage crash on launching

[RafaelLinux]

 ./DownZemAll_v2.5.8_x86_64_no_launcher.AppImage 
This application failed to start because it could not find or load the Qt platform plugin "xcb"
in "".

I verified xcb is installed. What more to check?

Operating System: openSUSE Tumbleweed 20220719 KDE Plasma Version: 5.25.3 KDE Frameworks Version: 5.96.0 Qt Version: 5.15.5 Kernel Version: 5.18.11-1-default (64-bit) Graphics Platform: X11 Processors: 4 × Intel® Core™ i5-6600K CPU @ 3.50GHz Memory: 31.3 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2