• MC Version: 1.16.5
• C&B Version: chiselsandbits-1.0.12-RELEASE-universal.jar
• Do You have Optifine: No

Select Connected Material > 1x1 from the radial menu

Expected behaviour: Place 1 layer on top of the existing connected bits
Observed behaviour: Places 2 full planes on on the selected layer and one in front:

Currently behaviour is the same for Connected Material > 1x1 and Plane > 1x1

I am pretty sure placement of connected material is implemented as a plain.
We where unsure as to what the correct behaviour is supposed to be.

If you have any ideas as to how it has to behave in different circumstances, feel free to come into our discord.

That also means, that yes I will indeed still need to fix this.

Both Connected Plane & Connected Material in C&B 0.3.4:

So they just use the same projected shape....
Okey I will need todo some digging on how this needs to work now.