Application crashes during buttonless DFU attempt

[tgao]

Hi, I am trying to implement buttonless DFU on my nRF52832 on PCA100040. After using the NRF Connect app to initialize DFU, the DFU log on the app gets to the line

Response (Op Code = Enter Bootloader, Status = Success) received.

upon which the log stops and the application seems to crash. Printing to standard output from the device abruptly stops also and the device needs to be manually reset using the button. Could this be a memory issue?

EDIT: I have determined that the device gets through all the buttonless DFU reset process and does go through the system reset into DFU mode. So I guess the issue is that the bootloader doesn't load the new update and run it correctly. 

[tgao]

Hi, I actually figured out the problem. My NRF_LOGGING is not working and I think when it tries the final flush, it crashes/stalls the application, preventing the shutdown.