OnlyKey App not running on Manjaro

So, I’m new to Manjaro OS which I have to use at a company.

I followed the installation instructions to first install the udev rule (step 1), and then used snap to install the OnlyKey App (according to their cli command suggestions). After a restart of the OS, I have the application in my Application Launcher. When I click on it, the OnlyKey symbol shows up in the taskbar for a few seconds and then simply disappears without an error.

I checked the system journal but this is the only output that I get:

Apr 24 13:35:47 PC50 systemd[712]: Started OnlyKey App.
Apr 24 13:35:47 PC50 systemd[712]: Started snap.onlykey-app.onlykey-app-e43aa809-acb1-418c-949f-52f426af8728.scope.
uname -r
6.6.26-1-MANJARO

cat /etc/os-release
NAME="Manjaro Linux"
PRETTY_NAME="Manjaro Linux"
ID=manjaro
ID_LIKE=arch
BUILD_ID=rolling
ANSI_COLOR="32;1;24;144;200"
HOME_URL="https://manjaro.org/"
DOCUMENTATION_URL="https://wiki.manjaro.org/"
SUPPORT_URL="https://forum.manjaro.org/"
BUG_REPORT_URL="https://docs.manjaro.org/reporting-bugs/"
PRIVACY_POLICY_URL="https://manjaro.org/privacy-policy/"
LOGO=manjarolinux