[Cura keeps making hollow object solid]

I followed a Fusion 360 tutorial to make it. Thank you for the fixed version! I've just gotten started with Fusion 360 so I wasn't sure how to properly make it. Thanks again for your help

[Cura keeps making hollow object solid]

I am using Cura version 5.6.0. I recently designed this spiral plant pot and was slicing it in Cura when I came across a problem. After getting shocked by an estimated print time only to be described as abysmal, I found that Cura had made my plant pot solid. After scouring the internet, I found that most people recommend turning off Union Overlapping Volumes. When I tried this, Cura just ignored the geometry of the pot and still made the inside solid. Can anyone help me with this? Plant_Pot.3mfPlant_Pot.3mfPlant_Pot.3mfPlant_Pot.3mfPlant_Pot.3mfPlant_Pot.3mf