I've followed the instructions in the help document, have been careful to include spaces around the '/', and yet, submenus aren't being created. I've tried changing the name and then changing it back. I've also tried in both a firefox based browser as well as a chromium based browser (in case, for some reason, it was a rendering issue). The prompts in question were imported but I also tried cloning a system prompt and adding a folder - however that also didn't work. I've attached a screenshot.