Hi @Raphael 16,
that's definitely a bug in Safari (OSX and iOS) in the current beta.
I've already fixed the bug but the fix hasn't been released yet because we're working hard on a complete overhaul of the algorithm and interface behind the scenes. I'd say we're about one week away from launching the official 1.0 version.
Is the workaround an okay solution for you right now?
You will be able to use Match 1.0 in Safari, Chrome, Edge and Firefox when we launch.