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Here are the master, RGB mix for manaully adjusted for filter factor and aperture piority mode. As you can see, they looked nothing like each other.... what on earth...Help

Massively confused with Trichrome on a digital camera. I was experimenting with trichrome photography off a 24MP bayer-layer-sensored camera and I have encountered some mind boggling confusions.. As instructed by literature for trichrome photography, I have used the 25 Red, 58 Green, and 47B Blue for each RGB channels and according to Tiffen website they have the filter correction for R-(3 stops), G-(2 2/3 stops) and B( 2 1/3 stops) respectively. So here is what I did, I took a master shot( properly exposed with no filter) and then took RGB filter photos with corresponding filter factor compensated in Manual mode, by adjusting ISO values, so I don’t mess with low shutter speed and create shakes… All the photos are take with a 2s countdown timer so, again to avoid shakes. The problem is that I realized immediately when adding the filter the under exposure value does not correspond to their filter factor compensation. For example, with the blue filter, the meter says I’m 4 stops underexposing it. So our of curiosity, I took another RGB photo in Aperture priority mode, to let the camera auto correct to the proper exposures and thinking to compare the results later. Then, when I moved all the files to Affinity photos, and mixed all the channels, I realized that 1) each RGB filter did not block out other colors. E.g for the photo I took with Blue filter, there are very much visible image show in its Red and Green channel. Which means still a lot of Red and Green light was passing through the 47B filter???? 2) I mixed both the Aperture priority exposed and the manually exposed RGB copies, and the result looked nothing like the Master shot, they both have massive color shifts…. What did I do wrong??? I recorded the whole process in the YouTube video here: https://youtu.be/5aA4YD1gPjI I also uploaded all the raw files in DNG as well as RGB mixed to here: https://we.tl/t-F7XlCC6Xmn