Course won't preview or publish
Anyone come across this before? Working on a course, clicked preview on a slide and all I saw was a black player with no content! I tried copying all the slides across to a new course and the same thing happened. When I try to preview the entire project it freezes at slide 9 of 9 (see screenshot). When I try and publish the course it 'rushes' through the final few slides and doesn't create all of the files you'd expect in the output folder.
Whilst it's only 9 slides I'd rather not have to recreate them all again!
Any ideas? Anyone?
Thank you in advance.