I have cleared my entire cache and restarted Chrome to no avail. I can click on existing layers and bring up the relevant menu, but none of the templates, media, text, elements, or grids menus will populate.
Sorry to hear you are running into this issues. Could you DM me your adobe id (email that you sign in with) so we may check associated error logs, if any.
I'm talking about the issue described in this post. I saw that you liked one of my comments and had a moment to dig into it a bit further. (My profession is in enterprise web services)
I have a redacted javascript memory heap dump and a network activity dump from Chrome for you to pass along to your devs. Both are approx 78mb text files. How would you like to receive them? I tried to paste them here, but it crashed the browser tab.