[Montaillou]

I have an epub file that reads perfectly well in the desktop e-reading software I use (Book Bazaar reader), but when I load it into Calibre, for the purpose of uploading it to my Kobo Libra H2O as a kepub file, it does something weird to a part of the text - in particular, the list of illustrations. When I open it inside Calibre, the centre of that spread of pages is offset to the right quite a bit, and the right-hand edge of the text on the right-hand page is thus pushed off the edge of the screen. No adjustments to font size etc. seem to make any difference. And when I export it to the reader, that same glitch is reproduced there.

I've googled high and low for a solution, but it doesn't seem to be something anyone else has had to deal with. If anyone could recommend a solution, or at least where to look for one, I'd be very grateful!