I know it has passed 7 years since this problem was recorded, but since we ran into this issue and were looking for assistance, the provided answers above did not apply to our case. Therefore, we add some tips for the readers:
Check the TMS alert in the system where the transpor was created. It can be done in many ways, but you ca do STMS > Monitor > TMS Alert > TMS Alert Viewer
Our issue was with retrofit, which did not exist in 2007. Basically TMS is reporting that the transport of copies that is being expected does not exist, hence "Nothing done".
Solution was to generate in SolMan via report RETRO_SERVICE_CREATE_RFIT_DATA the missing transport of copies. Once that was done, we could perform the transport move.
Regards,
Juan Carlos