Mural disconnects when creating tags

I'm a fairly new user to Mural, and have been added as a guest to a room with multiple murals.

When creating a tag on a sticky note, I get a message saying Mural has disconnected, and asking me to reconnect. When I reconnect, the created tag is not there. This happens on all the murals that I have access to.

Has anyone else encountered this issue before? Is it because I'm signed in as a guest, albeit with edit permissions?

I don't have any other connection issues to Mural, and have good internet speeds. Using the latest version of Chrome, and websockets are enabled... Bug or just unlucky?