I've been working in Blender for some time, so I have experience with exporting stl from it with exact size and I had no scale issues with slicing.
But today cura showed a strange thing.
These are 3dBenchy and a stretched cube which are supposed to have 45mm height, also "boundary boxes" are turned on to show that there is no flying geometry.
And if I scale the ship inside the cura it will look like this
Does anyone know if I screwed up the model somehow or can it be considered as a bug?