PROBLEM Font Awesome Icons not showing after GetSimple CMS implementation

[Crytec]

You need to check it using browser development tools, ad check css inheritance see if a reset or something is overriding your .fa classes. And to make sure your assets are loading.

Hi shawn,

thanks for your reply. Now I found the problem:

I copied the main page content from my static source over in the "Edit Page"-section. (source)
In case that I immediately hit save and take a look at the site all icons are there.

At the moment when I hit edit page again all <i></i> tags and the content in between is replaced with blanks (&nbsp and thats why the icons didn't showed up.

The question now is, how do I prevent the backend to do this? The edit function is totally useless as long as this problem exists. Do you have any suggestions how I can solve this problem?

Thanks for your help, hints and replies.
Greetings