I my what a morning.
I obviously made a fundemental error. I changed the name of a style folder (paragraphs) to something more useful for me. This has literally resulted in a fundemental colapes of my book, contents and styles.
The older folder name keeps being recreated, the styles wil lonly reference this folder, not the renamed folder, which in turn has broken the contents page.
Surely this should not happen, is there anything I can do?