Url (apparently I am still now allowed to include links): world.episerver.dk/documentation/developer-guides/commerce/catalogs/catalog-content/properties/#genericpropertylistSimple cannot get it to work neither for ProductContent or NodeContent (as the example).
And before suggestion ContentArea/Blocks ... NO I hate this for "object lists" ... and a whole other disucussion.
So removed support for it and forgot to update docs?
Using 13.29.0 for own project, but also tested on Quicksilver ... no luck
If you are talking about Url property type only then please refer this post
You will need to add follwing attirbutes on your Url property.
Please let me know if you are facing different issue.