If a test file name contains "{" or "}" - the file can not be copy/pasted The exception received is: [03-01 09:40:36,Telerik.TestStudio.Desktop.exe(10680:1),TestStudio] FileSystemProvider.CopyTest() : EXCEPTION! (see below) Outer Exception Type: System.FormatException Message: Input string was not in a correct format. HRESULT: 0x80131537 (Official ID (if app.) = COR_E_FORMAT, Error Bit = FAILED, Facility = FACILITY_URT, Code = 5431) Call Stack: at System.Text.StringBuilder.AppendFormatHelper(IFormatProvider provider, String format, ParamsArray args) at System.String.FormatHelper(IFormatProvider provider, String format, ParamsArray args) at ArtOfTest.WebAii.Design.ProjectModel.Providers.FileSystemProvider.GetNextFilename(String pattern) at ArtOfTest.WebAii.Design.ProjectModel.Providers.FileSystemProvider.NextAvailableFilename(String path) at ArtOfTest.WebAii.Design.ProjectModel.Providers.FileSystemProvider.CopyTest(LightFolder newParentFolder, LightTest testToCopy, String newName)