Flowing Fluids + Create in Version 1.21.1, Pipes don't consume the source block

[vocal dune]

So basically when i am on 1.21.1 and using create pipes to try and drain a lake for example, the source block isn't drained.
I have the mod enabled and the create_compat infinite pipe source turned off but when i tried it with the contraption you can see in the picture, it pumps out an infinite amount of water. Now when i turn of the mod, it works as normal but of course then i can't drain bigger pools.

Does someone have an idea if i have a setting configured wrong or is this just a bug?

Btw i found out that this is the case since version 1.0-neoforge so 0.6.1 works fine

[wooden spindle]

Every version problem ig