I’m looking into this, sorry for the problem. It works better on Firefox than on Chrome. Looks like my code for shortcuts detection is not very friendly to different keyboard layouts in this place.
This should be fixed now, hopefully both for FireFox and for Chrome-based browsers. I’ve tested on Mac-based devices, which I have available at the moment, with Cmd+; and Cmd+: variations, but I hope for Windows it would work, too.
If you have a chance to try it out - please let me know