My company experiences this, but so far only on custom Crystal Reports forms. Here is the most frequent sequence:
Print Preview for Job Traveler; works as expected (usually printing is done following the preview; my staff tends not to trust that the report will be as anticipated without previewing first).
Print Preview for Pick List; concurrently both Job Traveler appears again and also Pick List.
Because we are not experiencing this with SSRS reports, my thinking was that I would convert the Crystal Reports to SSRS, but perhaps that effort won’t be necessary if Epicor can fix this bug.