MQTT "JSON parse error"

Configuration
1

I just configured MQTT with Home Assistant. Outside of HA, I can subscribe to a topic, and publish to the topic, and see it. Everything works great. When I try to send a payload inside of HA, I get the below error message in a pop up box:

Error parsing JSON: SyntaxError: JSON Parse error: Unrecognized token ‘?’

Anyone know what this means?

2

That there is an issue with your payload. Usually not properly escaped.