2017.10.05 15:55 "[Tiff] Problem using libtiff in debug mode with visual studio 2010", by Emmanuel Cosnard

2017.10.06 12:39 "Re: [Tiff] Problem using libtiff in debug mode with visual studio 2010", by Olivier Paquet

2017-10-06 4:24 GMT-04:00 Emmanuel Cosnard <emmanuel.cosnard@outlook.fr>:

But I still have no idea why it works in Release and not in debug...

It's an assertion within the C library and those are not present in the release version. But the release C runtime probably still has code to quietly ignore the error instead of crashing.