Adaptive Infill does not work

[SAinc]

Version

2.3.55.1

Operating system type + version

Win 10 19042.662 x64

3D printer brand / version + firmware version (if known)

My own CoreXY design running on a Duet 2 with RRF 3.2b4

Behavior

The adaptive cubic and adaptive support infill settings do not produce any infill. I have tested this with my own profile, and with Prusa's profile with the same results. Testing was done with a 50mm box, generated from SS context menu. I have confirmed that this works on PS 2.3b4.

Project File (.3MF) where problem occurs

Shape-Box.3mf.zip
(rename to .3mf)

[xTremePower]

same problem here, it produce a totally infill free object

[frezap]

Still doesn't seem to work correctly in this version: https://github.com/supermerill/SuperSlicer/actions/runs/475680459

It does do infill, but it doesn't do the adaptive part.

[CCS86]

I find the same. Both adaptive and support cubic infill just print at a fixed density.

[CCS86]

Appears to be broken in the PrusaSlicer 2.3.0 official as well. No attempt to densify under this internal bridge (support cubic), or the walls (adaptive cubic):

:Edit:

I had the infill density at 20% for that screenshot. Upping it to 60% shows adaptive behavior for support cubic.

Adaptive cubic still doesn't seem to work very well in PS 2.3.0 official: