@oSoMoN setting DISABLE_WAYLAND=1 seems to work as a workaround on both Ubuntu 17 & Fedora! Thank you!
@jamesh the app works as expected with Wayland when not using Snap. E.g. just running ./test from the test-linux-x64 generated directory in the repo.
Trying a run with WAYLAND_DEBUG=1 we don’t get any additional logging out - this is also the case if we run the unsnapped version. e.g. WAYLAND_DEBUG=1 ./test