I’m trying to get the angle between two vectors using dot product + acos but keep getting weird results.
So, basically, there are two coordinate lines like X and Y, and I want Y to calculate and show the angle between itself and X, which should be 90 degrees.

Get actor location, then break the vector, then add +500 either on X or Y respectively, then make it vector again and then do vector minus vector node and subtract actor location to get “pure” (so to speak) vector out of it. Normalize the result and do DotProduct + acos to get the degrees.