If anyone is curious, I found a solution to this annnnoooooying backwards walk jitter. As the OP suggested, it was because of a constantly flipping positive/negative 179/180 value. I played around with all the settings and variables suggested above, but I finally found a solution by changing the built-in math from the ThirdPerson Animation Blueprint as such.
Basically, the Direction already flips between -179.9 and 179.9 when walking backwards without the default code that Epic had in here. The default code here actually just does exactly what the TPBP does without the code. (If >180, subtract 360)
Once I changed these numbers, now it flips from -179.9 to 179.9 and won’t flip back and forth from negative to positive while walking straight backwards.
