The specs say it has an IR cut window on the OCS version. Unless I use the ZWO IR/UV cut filter I get a lot of red and purple gradients.The added filter cuts out all the gradients. Why doesn't the IR window cut the IR wavelength? Did I perhaps get the wrong window on the front of my camera? The AR instead of the IR. This might create an issue for me when my Hyperstar filterslide comes in and it only is meant for 1 filter in the slide. Did anybody else have this issue?