The underlying problem seems to be that you can't have any formatting on the hide tags, which is why going to the underlined A and clicking 'none' works. You can also highlight the hide tags and click this button:
in order to remove the formatting.
Also @
Organization Member XIV he included spaces in his example in the OP so you could actually read the hide tags, but he says right in the OP "I don't use spaces". Read more carefully next time.