MQTT-SN Old data hangs in the bufferhttps://devzone.nordicsemi.com/f/nordic-q-a/72735/mqtt-sn-old-data-hangs-in-the-bufferMy problem is with examples of publishing and subscribing at the same time. I crossed them by adding a check for subscription if I did not sign I do this and register the topic id 1. When I try to send a message from the MQTT client to the sensoren-USTelligent Community 13Mon, 15 Mar 2021 14:23:43 GMTRE: MQTT-SN Old data hangs in the bufferhttps://devzone.nordicsemi.com/thread/299834?ContentTypeID=1Mon, 15 Mar 2021 14:23:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:abd975f7-cb4d-41a5-a0dd-741e5c573f09Albrecht Markus Schellenberger<p>Hello,</p> <p>I recommend you do one of the following things:</p> <ol> <li>Only print as much characters as you have received with the message. The data length of the frame is available at receiving time.</li> <li>Separate your messages in the buffer using a null-terminated string <em>&#39;\0&#39;</em>.&nbsp;A print-function will only print characters until the first null terminator.</li> </ol> <p>Cheers!</p> <p>Markus</p><div style="clear:both;"></div>