I’m taking this opportunity to report a bug on the same topic but much more worrying… I wanted to create the PR and so I did a test on the MQTT integration to see the message that appeared… and then it’s a disaster!!!
MQTT doesn’t return any error but simply overwrites the device directly!! deleting the other device’s features in the process…
I also tested with 2 features in the same MQTT device, it’s the same, no error and the first feature gets overwritten!! However, if you create an identical feature in another device then we get the correct message:
