Securing bike to bike rack when the bike has front and/or rear racks

[echappist]

Thanks to a helpful forumite, I finally acquired an 1Up rack; and after dawdling for a few weeks, I finally installed a hitch and the rack.

One minor complication is that the arms used to secure wheels to each of the bike tray comes in conflict with the rear rack on my bike, such that the arms don't fully tighten down.

Does anyone here have similar issues? If so, how have you solved the problem?