Pistons reacting slower in certain chunks

So I invent a lot of Redstone devices and one of them is a equal item distributor which has never failed me since 1.15. I'm working on an auto position brewer with 15 brewing stands (1 for every brewable position atm) which uses 15 distributors which uses the width of 3 chunks,

What I expected to happen was...:
When the blaze powder gets fed into the hoppers, it should get perfectly distributed along all the brewing stands.

What actually happened was...:
The item distributors in the first chunk distributed 2 items at a time and all the distributors in the second and third chunk did 1 item at a time even though all the distributors are identical.

Steps to Reproduce:
1. Download and run the cut down version of my auto brewer which has just the equalizer distributor with each distributor identified by number with which chunk they are in.

2. Run the world and insert the blaze powder in the marked chest as input (complete the hopper loop if u want but I've broken it for debugging)

3. Keep an eye on the piston speeds of the distributors as the items get equally distributed and as the distributors active through the chunks

4. Once finished, all the item in the brewing stands should be the same but the ones in the 1st chunk will have 2 per distribution instead of 1 from my testing.