If you duplicate a deployment in OttoDeploy, and rename it… the old name hangs around and is sent as the deployment name to OttoFMS.
I have one that I duplicated twice… Deployment A duplicated to Deployment B, and then Deployment B duplicated to Deployment C. When I run Deployment C, it is named “Deployment A” in OttoFMS in …/otto/app/deployments/