We are using the native AppsFlyer - Amplitude integration and we are not getting any data through. We have been repeatedly told by AppsFlyer that the data is being sent, but it’s getting a 400 error response. From reading the data on this error, this appears to be related to a JSON formatting issue, but I don’t fully understand how that could be the case with a native integration? It’s also worth highlighting that we did initially get some data through, but this has since stopped. We’ve not changed the API key on Amplitude, so I’m at a loss as to what is happening here.