no matter how many times i convert/reconvert/restart my kindle etc, i without fail get the same invalid mobi header warning.
i'm on calibre version 7.24.0 and my kindle is on 5.17.1.0.3
=== Kindle Collections 1.7.29 PREVIEW Report
Preview only - no collections have actually been modified on the Kindle.
Warnings:
These files contain invalid Mobi book header information and will be ignored by the Kindle. Try using Calibre to reconvert the book to Mobi format (even if you need to convert from Mobi format) and resending it to the device.
please help, i am about to walk outside and start banging my head against the brick wall
