Cant load WickrMe on Arch

[ogra]

looks like another iteration of

Snapped app not loading fonts on Fedora (and Arch)

My pick snap (https://snapcraft.io/pick-colour-picker) has had a bug reported against the snap version (https://github.com/stuartlangridge/ColourPicker/issues/60). Apparently all the text glyphs are replaced with empty Unicode boxes, as per this screenshot from the bug: https://i.imgur.com/PfN85fN.png I have no idea what might cause this at all. Does anyone have any suggestions? I don’t know if it’s related to it running on Fedora; I can say that it doesn’t happen for me, on Ubuntu.