While it's easy to delete custom lists and titles within my watchlist, it appears impossible to delete a title from a custom list.  

0votes

I'm using desktop version and there's a bin/trash icon beside each entry in your custom list, see this

Sometimes it takes a few minutes for a custom list to update. Are you Saving it after you've made your changes?

Hi.  I think so.  Sorry for the delayed response.  Will make sure all changes are saved going forward.   Thanks!