So a few months ago I could get it to go from the smallest ring to the biggest ring and visa versa (couldn't go in the middle) and needed the assistance of my heel to get it to downshift. the shifter feels a tad "stuck" but still shifts through the clicks. Ive tried wiping the cable of debree and tightened a nut that I found attached to the cable but that didn't do anything. Previously the shifter had gotten stuck and when i forced it to shift it had some problems but I thought those resolved themselves on their own