Yes, I have this same problem when using certain forms in the HTML I am trying to edit.  Try these 2 things:

 

In your HTML above, you have several <input>'s.  I noticed that only one of them looks like:

 

<input ... />

 

And the rest look like:

 

<input ... > (No forward-slash).

 

Try putting the "space foward-slash" at the end of all of the other input tags.  If this doesn't work, try removing it from the one tag that has it.