systemdialog: Fails to open correctly on mobile, missing buttons

I wanted to start a KRFB session, but I can't press the share button because it doesn't show up.

The warning logs:

Jan 23 19:29:57 S6872-3w2o xdg-desktop-portal-kde[2090]: Qt Quick Layouts: Detected recursive rearrange. Aborting after two iterations.
Jan 23 19:29:57 S6872-3w2o xdg-desktop-portal-kde[2090]: Qt Quick Layouts: Detected recursive rearrange. Aborting after two iterations.
Jan 23 19:29:57 S6872-3w2o xdg-desktop-portal-kde[2090]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.mobile/contents/systemdialog/SystemDialog.qml:241:45: QML Binding: Binding loop detected for property "value"
Jan 23 19:29:57 S6872-3w2o xdg-desktop-portal-kde[2090]: Qt Quick Layouts: Detected recursive rearrange. Aborting after two iterations.
Jan 23 19:29:57 S6872-3w2o xdg-desktop-portal-kde[2090]: Qt Quick Layouts: Detected recursive rearrange. Aborting after two iterations.