getCompatibilityProperties and getCompatibilityPropertyValues in sandbox taxonomy api not working

[sinanal]

production mode has no problem but sandbox not working for getCompatibilityProperties and getCompatibilityPropertyValues

{
      "errorId": 62000,      "domain": "API_TAXONOMY",      "category": "APPLICATION",      "message": "There was a problem with an eBay internal system or process. Contact eBay developer support for assistance."
    }