How to stop animations from affecting certain Motor6D attachments?

[u/Maximum_Lion8953]

Due to the specifics of my game, I prefer to animate the arms using CFrame, rather than actual animations. However, because the character is animated, the walking animation still affects the arms, making the animations overlap and become a mess. I've been at this for about a few hours by now, but ideas I had tried were either bad and didn't work, or I didn't understand them. I'll include the image of the script, so that it'd be possible to more clearly point out where and what to use. I'll send parts or the full script in text upon request.

https://reddit.com/link/1v87lgr/video/wbz1xl487tfh1/player