Why is this not printed as a solid wall?

[sigwx 0]

Hello!

I have an stl with cylinder that has a 0.4mm wall, that when sliced in 4.7 comes out as a bunch of bits of wall with gaps.  With 4.6.1 its a solid wall (granted with a bunch of travel back and forth over the layer as it prints).  I'm using the Anycubic Mega i3 printer as shipped with Cura.  What 4.7 gives me is:

 

bee_guard.stl

[GregValiant 1,250]

I sliced your model (4.7beta) and it looked fine.  Here's the project file.

beeThing.3mf

[ViperZ 0]

Hi there.
I was wondering a bit about this, so I'm writing to you.
It doesn't cause problems in 4.6.1, but it does in 4.7, right?
In this part alone, it seems to be the effect of a change on the program side, not the slice settings.
I think I need sigwx's configuration (project file) to confirm the problem.

[sigwx 0]

Hello!

I've  attached the project file that generates the slicing I'm seeing.  I'm using the 4.7.0 release, not the beta so maybe that matters.  Your project slices correctly for me, so its probably a setting that is being misinterpreted/interpreted differently/new interpretation from 4.6 to 4.7 in my project.

AI3M_bee_guard.3mf