When converting some pdf files my data conversion tool hangs and gives no error in the error logs.

This is a change in Ghostsrcipt in the 64bit windows version. The output warning that the file being converted is not created according to the PDF standards in now being directed to an error level. This causes the data conversion to wait for Ghostscript while Ghostscript waits for the data conversion tool.  We have released a correction in version 3.0.3 of the ResCarta Toolkit.