https://devzone.nordicsemi.com/f/nordic-q-a/51924/mesh-assert-on-startupHello All, I am running into a mesh assert error when running the light switch server demo on a custom board w/ the NRF52840 (MDBT50-1M). The device starts up fine, has an external clock to it and seems to step through other initialization well. en-USTelligent Community 13Tue, 10 Sep 2019 12:33:45 GMThttps://devzone.nordicsemi.com/thread/208942?ContentTypeID=1Tue, 10 Sep 2019 12:33:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a198d3cc-5851-4695-bccb-29a967326079Hung Bui<p>Hi Jason,&nbsp;</p> <p>Could&nbsp; you provide the RTT log ?&nbsp;</p> <p>On your custom board, can&nbsp; you run normal BLE application ?&nbsp;</p> <p>Stepping in the code of mesh application wouldn&#39;t work all the time as the softdevice has some timing requirement. You may end up in hardfault when stepping.&nbsp;</p> <p>You may need to use addr2line.exe to debug where exactly where the assertion occurs.&nbsp;</p><div style="clear:both;"></div>