No one is telling you 64bit shouldn’t be used.
@tfoote seems to ask for instructions on how to reproduce your issue, as if it can’t be reproduced, no one can help you.
Me asking you what aptitude reported is also a way of getting more information about your system.
Reporting problems is +100. But without providing more information when asked, they can’t be diagnosed.
That I can agree with: "Please post this on ROS Answers instead"
/me 3200+ answers later … 