Hi Ben,
Thanks for emailing. It’s correct I don’t have any post with a slider. I only use the thumbnail options of a blog post and portfolio. For example, if I open the tab new blog post and want to add an image under thumbnail options it doesn’t upload it. Same for portfolio. It doesn’t matter which option I click on video, slider or image it doesn’t upload.
Hope you can help.
Thanks,
Patricia
PS not sure whether I know need to add a comment here as I also emailed.