I've been using storyline since before it was released as a beta tester in 2010/2011, and I've never seen this until SL2.
Regardless if it is a new project, and existing project, a project with imported slides, or anything, after approximately 1 hour of steady work, the text boxes on EACH SLIDE suddendely decide they are huge white envelopes w/red trim, and refuse to be edited.
I've uninstalled, reinstalled, fixed, shut down, restarted. This is a deal breaker for me. What do I need to do to fix this today?