Many bugs have been found in 'fabulous' mode... but are there anything can do with it? (Sorry about my poor English)

For example, the Lightlevel overlay won't render correctly:

However, through some other transparent layers, it may does its job:

Weird things may happen with water. I thought it is the transparent part of the numbers shielding the water.

Without lightlevel overlay:

With it:

Another example, water seems to be floating:

Turn to the water, it works normally: