I added the plugin WP-Members to a site and now I can't seem to edit the html/css inserts. I can see the top line, but I can't expand the box and see what's in there, but if I insert my cursor at the end of the line and hit my delete key, the second line will come to the top. I need to add some code here and not sure how to repair this. Any suggestions are appreciated, thank you!

what happens if you disable the plugin?

It goes back to it's normal state, showing all the html/css that I've put in.

I did find a work around. I did ctrl A, copied/pasted into word, edited the code, and then put it back the same way. It works, it's just a big pain. I've not tried this plugin with other themes to know if it would cause any issues with them or not.