.5mm walls with .5mm nozzle?

I am trying to print some thin walls (actually small details on a larger part) that are .5mm thick and the slicer seems to just ignore them.

I’m using a TAZ6 with a E3D Titan Aero PRO Toolhead (1.75mm fillament) and the standard brass .5mm nozzle.

The part prints fine on a different (.4mm nozzle) printer (flashforge guider 2s).

Am I missing anything here? Would this be a cura setting that I am breaking/missing?

Thanks!

Print thin walls option in Cura.
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