Just thought I would chime in, although catkin is a bit more a guru than me, but i was looking at the lines from your 'ls' and wondered if maybe the issue
could be resolved by searching for something other than the name of the show which is the same between both?
So we have:
-rw------- 1 transmission allusers 14936 May 22 11:27 /home/transmission/.config/transmission-daemon/torrents/Alvin and the Chipmunks - The Squeakquel[2009.DvDRiP[NoRaR]L33t - bittoxic.8eaa61dc40f690ea.torrent
-rw------- 1 transmission allusers 31606 May 23 12:40 /home/transmission/.config/transmission-daemon/torrents/Alvin.and.the.Chipmunks.The.Squeakquel.2009.NORDiC.DVDR-HiGH.f836de6d3a3497cf.torrent
Where the second is to be kept but the first deleted. I also noted that the first has the string "bittoxic" but not the second. Maybe if you used this word with asterixes
it could solve the issue of lots of escaping??
Hope this is not a wildly useless tangent.