Example Light Switchhttps://devzone.nordicsemi.com/f/nordic-q-a/35225/example-light-switchHello, I use nRF52840_SDK_Mesh, when I run the Light_Switch example with the first Client for the first nRF52840 card the 4 leds light up, and it&#39;s the same with the Server on the second card nRF52840 the 4 Leds s light up ... Can you explain the erroren-USTelligent Community 13Mon, 11 Jun 2018 12:46:49 GMTRE: Example Light Switchhttps://devzone.nordicsemi.com/thread/135584?ContentTypeID=1Mon, 11 Jun 2018 12:46:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2075a483-73e2-4800-a24b-7efcd50e92e5FormerMember<p>To find out what is causing the error, I would recommend you to set a breakpoint in app_error_handler(), run the chip in debug mode, and then check where (line/file name)&nbsp; the error occurred.</p><div style="clear:both;"></div>