I need to combine files to capture all the redlines and comments from different versions of a document. When I combined a fairly new (saved last month) file with an older one (from 2017), the resulting combined file is stuck in draft view and will not go back to print view. Both original files open and display in print view just fine -- it's only the combined file that has the problem.

I'm guessing that something is corrupting the combined file, but I can't figure out what. The newer file was created in Word 2016 and the older one was created in Word 2013; could that be causing the problem? Does anyone have any ideas how to fix this problem?