Hi Mike,
I don not see anything suspicions in your attached logs.
What hw do you use, NXP EVB board or a custom board?
1) could you make sure the boot mode for the device is set to internal flash (FAB, ABS signals)?
2) check the status of reset pin to make sure there is no reset while processing the file.
3) can you create an empty single core project for MPC5777C using S32DS project wizard and program it into flash? (FLASH build configuration)
4) Perhaps you can try to program s-record instead of elf to eliminate corrupted elf file case. (simply replace elf with .mot file in the debug configuration)
Hope it helps.
Stan