When changing between normal view and preview, characters disappear. Example:
Text in normal view (snapshot of editor)
HTML view of text
Two spaces added in text
HTML view of text with two spaces added
Preview of text
Normal view
So the spaces are not visible in normal view anymore. However, they do show up in the preview.
If we save the text from the normal view window the spaces disappear permanently, if we save from preview they will show up in normal view after reloading (so they are saved).
What is the cause of this behaviour and how can it be prevented? Please help, this is very annoying to our customers!