homebridge-harmony: error after upgrading to 0.4.8

I get the following error after upgrading to 0.4.8:

/usr/lib/node_modules/homebridge-harmony/harmonyBase.js:594 callback(undefined, false); ^ Error: This callback function has already been called by someone else; it can only be called one time. at /usr/lib/node_modules/homebridge/node_modules/hap-nodejs/lib/util/once.js:12:13 at HarmonyBase.<anonymous> (/usr/lib/node_modules/homebridge-harmony/harmonyBase.js:594:9) at Characteristic.On.emit (events.js:202:15) at Characteristic.On.Characteristic.getValue (/usr/lib/node_modules/homebridge/node_modules/hap-nodejs/lib/Characteristic.js:164:10) at Bridge.<anonymous> (/usr/lib/node_modules/homebridge/node_modules/hap-nodejs/lib/Accessory.js:762:20) at Array.forEach (<anonymous>) at Bridge.Accessory._handleGetCharacteristics (/usr/lib/node_modules/homebridge/node_modules/hap-nodejs/lib/Accessory.js:726:8) at HAPServer.emit (events.js:197:13) at HAPServer._handleCharacteristics (/usr/lib/node_modules/homebridge/node_modules/hap-nodejs/lib/HAPServer.js:926:10) at HAPServer.<anonymous> (/usr/lib/node_modules/homebridge/node_modules/hap-nodejs/lib/HAPServer.js:209:39) at IncomingMessage.emit (events.js:197:13) at endReadableNT (_stream_readable.js:1129:12) at processTicksAndRejections (internal/process/next_tick.js:76:17)

I only changed the “inverted” option… if I set it back to true it is the same…

My config: { "platform": "HarmonyHubWebSocket", "name": "HarmonyHub", "hubIP": "XXX", "showTurnOffActivity": "inverted", "turnOffActivityName": "Media", "devicesToPublishAsAccessoriesSwitch": [ "Beleuchtung TV;PowerOn", "Beleuchtung TV;PowerOff", "Yamaha AVR;VolumeUp", "Yamaha AVR;VolumeDown", "Beleuchtung Theke;PowerToggle" ] }