I noticed that my left handed cad mouse's secondary (left) button was not working..(the buttons are swapped so it's actually the left button.)
After going to https://www.onlinemictest.com/mouse-test/ which I saw on another post it seemed the middle and left buttons were both responding as the middle button. This explains the odd behavior I had in C4d where the left/secondary click would act like a middle mouse click. As it turns out I was able to de-conflict the buttons buy setting the middle button to *primary* and then it started to work properly. I don't see how to set a "default" so it seems I have to set this on every application. If there is a way to set this so every app starts with this setting I'd like to know. But this is a tip to those using the mouse who are running into issues. Also that website proved invaluable in troubleshooting.
Odd thing with left handed cad mouse
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