I may be having a memory block but I was sure that in order to display the whole message in the debug window I was previously able to select msg. from the Output dropdown to make this happen. It appears that after re-installing node-red in my HASSOS system this no longer works. Am I missing something?
What happens when you click the drop-down?
Try clearing the cache on your browser. If that doesn't do it then check the Browser Developer Console and see if there are any errors.
Are there any other odd things happening?
What version of node red and nodejs are you now on?
Your suggestion of clearing the cache worked.