I'm currently having trouble adding components to a page and editing existing components in Touch UI.
For some reason the add component icon doesn't appear on the main parsys on the page:
Additionally, the edit component button isn't appearing either:
For some reason, I can edit the content in classic mode, so this looks like it's a Touch UI issue.
I have been using this author for around six months with no prior issues. This error occurred after a deployment this morning, which I have tried reverting with no success. The code in that deployment was fairly innocuous: just a minor change to a HTL file. I have also tried restarting the server.
I cannot see any errors in the console or in the error log.