Cura auto-scales even when disabled

[AlgebraManiacABC 0]

When placing in a solid cylinder from Autodesk Inventor with a 5 mm radius and 30 mm height, it scaled the model down 1000%. I have all automatic scaling settings off, so why would this happen? Cura 3.2, by the way.

[gr5 2,239]

STL files have no units and cura assumes it is in mm.  Autodesk I think defaults to inches when you save - somewhere in the settings you can specify the units for STL files - set that to mm.  Or maybe it's saving in meters.  Anyway set that to mm.

[AlgebraManiacABC 0]

Can't be that... I've already made sure everything was in mm. Default on Autodesk and for sure on that file.

[kmanstudios 1,120]

You do have to watch your scale setting in Autodesk products. As @gr5  mentioned you never know until you check and set. Their products are all over the place on that one.