Hi in file JQDownloadFrame.pas there still a reference to an inc file with the following path {$I '..\..\..\IWCGJQCore\Source\IWCGJQ.INC'}, when having the non-source version these could lead to a problem, so maybe it should be {$I 'IWCGJQ.INC'}
Also in the project source, you have removed the reference to the IWCGLicenseKey file (always commented by the '//') can you include it again?