File Picker not opening in Flatpak build

[WerWolv]

Clicking on Upload File or Upload Folder in the File Browser doesn't seem to do anything for me.

I've installed reManager from the Flatpak repository. Running the application from the console also doesn't show any log messages when clicking on the buttons.

[rmitchellscott]

I can't reproduce this on my Ubuntu VM. Can you share more about your system so I can try to replicate?

[WerWolv]

I'm on Fedora using the Niri Wayland compositor.
In case it's a xdg-desktop-portals issue, In using the KDE implementation there with fallbacks for the gtk and gnome one.

reManager was installed from Flathub (v1.1.1)