Hi, I have a strange problem with my Kobo Glo HD. Firmware version is 4.8.11073.
I have bought some Amazon eBooks in they prorietary format. So I broke DRM from them and converted all eBooks to ePub with Calibre. On PC, converted ePubs looks good, but when I copy them to my Kobo and try to open it I can't see anything and also Kobo freezes and crashes.
This is an eBook that I've bought and converted. Can you test with your eReader?
This is a video that I made to show what happen when I open an ePub.