I am using PPOM 18.5 beta (you shared) and PPOM PRO 18.4.
Issues i face:
1. Price matrix slider appears after a small lag
2. Slider quantity not validated e.g. slider shows 20 but the input quantity wants 21.
3. Even if I enter 21 manually and then add to cart, the cart shows quantity 1 only.
Please fix these issues at the earliest.