Vane out of alignment?
When you want to remove a vane, slide a thin flat object (credit card, etc.) up the vane on the hook side of the vane holder. Then slide the vane and card down and out of the vane holder (vane should slide out easily). If process is difficult, verify that the vane is not sliding back onto the hook. Reattaching vanes Remove vane. Notice that the carrier body in the headrail has a rectangular hole which the stem fits into. Align the carrier stem that needs adjustment with the hole. Insert a piece of string into the stem. Grasp the stem and push it into the carrier body. Now operate the rotation chain. You will now notice the stem now inside the body will NOT rotate. With the controls chain, rotate all other stems to line up with the one to be adjusted. Grasp both ends of the string and pull downward to move the stem back into the operable position. Reattach vane.