MOSQ_ERR_CONN_LOST thrown publishing message in development builds

[CiderGuy88]

There seems to be an erratic bug with this plugin where the connection to the broker is dropped after publishing a message to it, resulting in an infinite connect/disconnect loop. This seems to only occur in builds that are NOT shipping builds or in-editor and is seemingly coming from the MqttRunnable class's call to the mosquittopp loop method (where the error code 7/MOSQ_ERR_CONN_LOST is thrown).

[Sikhor]

I have the issue in the packaged build and never in the editor... Seems some configuration changes or the packaged dll is not the same as in editor.