I am using HoudiniEngine-v2.0.5-H18.5.759. Tested on UE4.26 and UE5
Houdini Setup:

Landscape Material:

Visibility mask will not be importet from houdini, I am still able to paint by Hand:

Anyone got landscape visbility mask from houdini working or is this a bug? (In an older version it was working for me)