scripts in PWB are under MIT license. I have never read it, I am not so deeply interested. :-)
Now, if I first publish a new script in Wikipedia, it gets under CC-whatnot-something-somenumber.
May that cause a problem if I (or someone) later want to insert it into the framework?

(My own scripts often have additionally a (C)(D)(E)(F)(G)(A)(H)(C) license developed by me which means nothing special but sounds well.)