[Plugin: User Access Manager] adding registration form, and redirect to page

When I add a form shortcode, or any link in the page or post content area, a \ is added before and after an quotation mark when saved, so the shortcode or link become invalid and do not work.

I am trying to have the user directed to login and/or register when they do not have access to a page, but I am unable to put in the shortcode or link due to the bug that is placing a \ around the ” in the html.

I have also tried to set up the redirect to a page or custom link, and neither are working for me. The page/post content always overrides the url redirect.

Please advise. I appreciate your help!
Thank you

https://www.ads-software.com/extend/plugins/user-access-manager/