Please provide the following information to reproduce the issue at our end:
1. Your OS version
2. Installed Acrobat/Reader version
3. Printer drivers and model
4. Sample PDF document on which you have observed this issue.
Also a MAC user this has resulted in countless hours wasted and paper and ink! I have tried even number as well and it still does not print on the backside of the first page!!!!
Please fix this it has been an issue since 2011!!!