When working on topics I occasionally have the view on the
WSIWYG tab go blank. This is happening once or twice a day.
Everything disappears, the topic, footer etc. If I switch to
another topic it is also blank in that view. If I select preview I
can see the full topic and all the links still work. (Most topics
use nested drop down text.) If I look at the TrueCode tab I can see
the HTML code.
If I close the project and reopen it the view is fine.