Vuforia Studio: 'key NODE_PATH already added' error

Vuforia SDK Version: Studio Version 8.3.2 - Description with steps to reproduce: Hi During first usage of Vuforia Studio it has stopped on "Performing setup (Libraties)" screen. Nothing more I can do, I can still see a welcome popup. I View Logs I can see error: "NODE_PATH key is already added" [08/14/2018 13:34:00] Studio Version 8.3.2 (8.3.2.3622) [08/14/2018 13:34:00] Status Message: Version 8.3.2 (8.3.2.3622) [08/14/2018 13:34:00] Status Message: Performing setup (Application)... [08/14/2018 13:34:00] Unzipping mbdist.zip to C:\Users\grzeg\AppData\Roaming\VuforiaStudio\studio-download.vuforia.io\ [08/14/2018 13:34:01] Status Message: Performing setup (Libraries)... [08/14/2018 13:34:01] Unzipping mbmodules.zip to C:\Users\grzeg\AppData\Roaming\VuforiaStudio\studio-download.vuforia.io\ [08/14/2018 13:34:35] Starting node.exe [08/14/2018 13:34:35] --- Error Starting node.exe --- [08/14/2018 13:34:35] System.ArgumentException: Element został już dodany. Klucz w słowniku: 'NODE_PATH' Dodawany klucz: 'NODE_PATH' w System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add) w System.Collections.Hashtable.Add(Object key, Object value) w System.Collections.Specialized.StringDictionaryWithComparer.Add(String key, String value) w com.ptc.ThingworxStudio.MobileBuilderForm.StartServer() [08/14/2018 13:34:35] ---- I've reinstalled it already, but it doesn't help. What can I do more? Regards Gregory - Development OS (Mac OS X, Windows, Linux): Windows - Mobile OS and Version: 10 - Mobile Device Manufacturer and Model name: Dell - Do the Vuforia Sample Applications show the same behavior?: