I'm facing issues with both subscription and publishing in MQTT. When publishing, it does not allow me to send alphanumeric values. If I use a numeric string and then convert it to an integer, it works correctly, as shown in the following example:

MQTT publish topic "coreS3/state", "5", Qos 1

However, when I try to publish any variable, whether numeric or text, the system simply ignores the command without displaying errors. For example:

MQTT publish topic "coreS3/state", numeric or text variable, Qos 1

If instead of a variable I use a fixed string, the command executes without issues.

I have spent a lot of time trying to solve this, but I haven't found a clear answer. Has anyone faced a similar issue or has any suggestions on how to fix it?

I appreciate any help you can provide.

[C:\Users\faria\Downloads\MQTT_Relay_S3_BAD.m5f2]