I just bought the PRO version of SP Page Builder and it does not allow me to save the new elements that I am integrating to the page... It does let me change the format, colors and the rest, but new elements of SP Page Builder Pro do not.

I have already activated and put the license that was sent to me via email, I have already cleaned the cache and temporary that saves the page and the browser, I have also restarted the computer and at the time of saving it does not do it, the icon of saving turning remains !...

I send a image in the link.

https://1drv.ms/u/s!ArQUV051UxWYgaGSc9SvhusSkj_JCQI?e=mFB4Ff