Hello Leica friends, the aperture ring on my 35mm summilux 1.4 Asph rotates easily without stopping anywhere unless I keep it on the right aperture. The blades open and close accordingly. This started happening while I traveled to India for 6 weeks, where I had just returned from it. I shot over 150 rolls of Tmax 400, and when I developed it, it came out fine except for a few frames where I wasn't paying attention and it moved easily from f5.6 all the way to F/22 and vice versa. Have anyone in here ever had that issue? I have been shooting M6 with Leica lenses since the late 80s and never encountered this problem with any lenses. TIA