I'm trying to program the latest versions of the bootloader (both, USB or Serial) throught the Chipkit Programmer and MPLAB IPE v2.26. However, when I try load the hex files the software only say "Loading hex file. Please wait..." and don't continue. The source of hex files is "https://github.com/chipKIT32/PIC32-avrdude-bootloader/tree/master/BootloadersCurrent-hex ". I understand that these are the latest versions.