From what I can read it looks your KW41Z µC is corrupted, K64 looks fine.
Here is the reasonning if you are interested - can help understanding the how the kit works better:
- K64 boot loader seems also ok, cause you can still use MSD mode (Most of the time users crash the k64 bootloader leading to a kit not booting at all)
- The K64 cannot complete its booting sequence therefore you are stuck. This said it looks ok from the log
- We can read in the log that K64 is asking KW41Z Mac address and not getting any answer.
- Am not sure yet whether just reflashing the core image will be sufficient, but we can try:
You mentionned you tried flashing different apps, but can you confirm you tried flashing the KW41Z hybrid application ?
The process to flash the KW41Z hybrid application is the same as for a K64 image (Reset + SW3 and drag and drop)
Am attaching the latest version to this message. This is the one to use.
Because you have not used the hexiwear docking station, I would be very surprised that the KW41Z bootloader is coorupted.