Hello!
Noticed recently - unsure of how recently this was implemented, whether it's a bug or if it's intentional, but pretty much all of the tent furnishings - including the Redguard ones, Imperial Commander and Dark Elf - no longer have collision (you can walk right through them, even the wooden posts) and cannot be picked up without using the 'retrieve' feature. It seems the new Solitude tents work just fine, though.
Hopefully bringing this to peoples' attention, and hopefully it will be resolved, if it is indeed a bug!
Thanks for reading!