I ran into the problem that Page Thumbnails in the Viewer Display are broken because they have different naming convention, see image below.
As I was writing this, I had an idea what the problem might be, and I was right.
Because I had previously exported JPG images from InDesign and had selected the page number as the suffix in the file name (as of InDesign 2024 you can now do this in the JPG export settings), this setting was saved and In5 exported the images accordingly, but did not take it into account in the html code.
Hopefully this discovery will help others or even better: Ajar will fix the problem in an update.
