Using J3.4.2+VM 3.0.9
I have a calculation rule, 30% price modifier before tax, set up for a group who gets a 30% discount on all items in my store. This method has worked successfully for me since early VM2.
Recently, (maybe since I upgraded from VM 3.0.8 to VM 3.0.9), not all items in the cart reflect the 30% discount for people in that group. The same products seem to be problematic, repeatedly. I've compared the problematic products side-by-side with nearly identical products in same category, yet I can find no difference other than description, sku and photo.
What else could be affecting this?