Hi. I recently changed my rear derailleur to the new GRX 10-speed medium cage. I am running it with my old shifters which are 105 10-speed. Before changing the rear derailleur the shifting was working flawlessly. After changing to the new rear derailleur I am having issues with shifting in the middle of the cassette. From 6-7 cog in the rear, I have to use 2 clicks to shift once. All the other gears are shifting well. Is this a compatibility issue? I read an article claiming the following "GRX400 10-speed is compatible with current Shimano Tiagra-level 10-speed groups". Is there a difference in cable pull between 10-speed Shimano and 10-speed Tiagra causing this problem? I have changed the rear derailleur hanger and outer and inner cable without any luck.