So does "Renew Only" basically do the exact same thing as checking the boxes of For Rent: Yes, Owned: No?
Also, I've checked the rental history a few different times to look for cards that were cancelled on me and every time I found no recently ended rentals, so I had to compare my card checklist to the remaining rentals to figure out what went missing. Maybe you've fixed it since then? I just cancelled a rental that was about to expire in 28 minutes and I'll see if it shows up in the rental history as ended when it leaves my account.
RE: Renting Splinterlands Cards Smart and Affordably