When making carpenters blocks into a slab, it does not render water under it, as shown in the image below.

Using version: 3.3.0

The default *config in 3.3.1 uses a method that doesn't have this issue. None of the methods provided are without some tradeoff, but they're noted in the config file in 3.3.1.

Sure thing then, will update and look into the options, thanks