When you copy a package, there are a couple of things you should do which may help minimise meta data issues:
1) Use File/Save As from within BIDS rather than doing a straight file copy.
2) Select the option to generate a new package ID in the newly created package.
Perhaps you could try the above - if you did not already - and see whether things work better.
If you haven't even tried to resolve your issue, please don't expect the hard-working volunteers here to waste their time providing links to answers which you could easily have found yourself.