List links redirect me to homepage

Sometimes when I click on the movie (or show or book etc) posters in a list, the URL gets messed up and redirects me to the listal homepage.
Example list here:
www.listal.com/list/favorite-movies-2010s-avpguyver

And some examples of how the URLs get messed up:
www.listal.com//the-void-2016
www.listal.com//kimi-no-na-wa
www.listal.com//the-witch-2015
www.listal.com//bond-23

Not all of them do, some use the proper format "listal.com/movie/movietitle"
For example here is the correct URL for the movie Skyfall:

www.listal.com/movie/bond-23

Instead of the messed up one I listed above.

Edit: It happens after clicking "load more items" and all the items below that first 50 have messed up links.