Quite Software informs that they encountered a random problem with inserting pages in the January Updates of Acrobat DC. The inserted pages may be in the wrong order, unexpectedly blank, or unexpectedly a copy of a different page.
Because Quite Imposing Plus adds new pages in many cases, it is particularly badly effected by this problem. Quite Imposing Plus 4.0f now checks that the result of every page that it inserts is correct, and if there is a failure it tries again. Quite Imposing Plus will not continue if it cannot correct the problem, and will instead stop with an error message.
Quite recommends installing this free update as soon as possible. The update is suitable for all users of Quite Imposing Plus 4, for Acrobat 9 and later.