[itimpi]

The synclog file is of interest. It shows that many files were left unchanged, but that the files in the 'books' type folders (the book pages) were all changed due to their length changing.

By looking at just those files between runs I was able to identify the problem. There is a checkbox on the Book Details tab about whether tags should be included in cross-references. This value has a fault in the load/save logic for this setting that means the setting gets inverted each run (and thus the book files DO change). That is a relatively new checkbox which would be why this was not showing up previously.

A temporary workaround would be to disable the generation of cross-references. An alternative will be to make sure you set the faulty checkbox to the same value just before doing each generate run. I will shortly make a build available that fixes the problem with loading/saving this setting so the workaround will then no longer be necessary.

Thanks for helping with this.