Hi Gareth,
I have this problem: I tried to set the Tiles (the same for Grids) course format.
I did a test to try the course. I start with the Tiles to carry out the lesson.
Once the lesson is completed, however, I do not go back to viewing the next Tiles, but I continue to stay in the view with the navigation arrows at the bottom.
The same happens if I start, for example, from the next Tile (Verification test) ... once I pass the lesson test, I am not shown in the course interface with the tiles ...

Attached the sample after the lesson...

Do you have a recommended fix for this problem?

Thanks,

Francesco