Print copies - Prints the last job's amount

Question

Strange one here. Never seen this before.

When you print a document from Photoshop, it will print but it prints the number of copies specified on the previous job. For example:

1. Document 1: set print 2 copies - result: (previous amount)
2. Document 2: set print 1 copy - result: prints 2 copies
3. Document 3: set print 3 copies - result: prints 1 copy
4. Document 4: set print 2 copies - result: prints 3 copies

It isn't as if the queue is off by one because it always prints the right document. This doesn't happen in other applications like notepad or Adobe Reader when printing to the same printer. It doesn't happen when printing to a different printer.

I have rebooted the printer, removed/reinstalled the printer, restarted print spooler.

edit: I forgot to ask a question. How can I resolve this?