[Client Bug] Stoneworking Efficiency working incorrectly.
I have Stoneworking Efficiency Level 3, which should net a ~52% efficiency on stones when crafting bricks - more or less depending on rounding and stack size. Best i can get is 27.5%, which is nowhere near 52%.
Image shows brick stack size of 20. Default stone cost would be 40 - it costs 29. Thats 27.5% efficiency. Scaling the stack up doesnt give better results.