How to get Support Blocker to Work?

[sensebellum 2]

I have been trying to get the whole Support Blocker -> Per Section of Model Settings to work and I need some help.

 

It looks like this is still a thing in the software but it keeps crashing on the slicing with any model. It used to work fine.

 

Is this still a real feature or does it not work anymore?

[sensebellum 2]

Alright, looks like a classic "this version doesn't work but 4.7 does"

 

Still not what I would call 100% infill though...

[GregValiant 1,305]

If you use "File|Save Project" and post the 3mf file here someone will take a look.  The support blocker in 4.8 works for me but I may be trying something different than what you want.