RoboHelp 2017 won't display topics in Design view
I have a quirk that I cannot understand and, at the moment, I can't resolve.
Most of the time I can edit topics in RH 2017 without any trouble but occassionally when I attempt to edit a topic, RoboHelp displays the container in Design view but it's totally devoid of any content:

This time however it appears to be stuck in this mode.
I can view the code if I switch to HTML view and I can preview the topic (Ctrl + W) without any trouble but the Design view will just not display the topic for editing.
I've tried restarting RoboHelp, restarted my laptop and verified that I'm updated to the latest version of RH without any luck.
If anyone has any thoughts on what I should try next please let me know ... this is very frustrating when it occurs as any author would know.
Thanks!
