iCloud not recommended for Pages and Numbers

This is a very good app and has a quite complete suite of functions that are easy to use. However, if I have a problem, the only way to let Apple know is to write a review. Ive emailed them but of no avail. When I print several sheets double-sided in Numbers, you never know what youll end up with. I set it to print Sheet 1 through 3 double sided. I end up with Sheet 1 and Sheet 3 front and back and the 3rd page was Sheet 1 again. The double-sided print needs fixing!!! I have an HP Pro 8610.

VBNE1? about Numbers, v2.6.1