Strange behavior from Solidify modifier
Hi there. I noticed after duplicating and joining the fins together into a single object, the solidify modifier seems to be doing something weird to some of the fins. I'm not sure if there was a step I did incorrectly that's making it behave this way or whether the modifier isn't working correctly in my specific Blender version (v2.80.74), or what. I'm looking for advice if someone has seen this happen before!
One fin looks OK.
However, the fins on the other side of the object look like they're being folded in on themselves.
Here are the fins in wireframe top orthographic view.
Here are the modifier settings.
If I hide the modifier, each (flat) fin looks correctly positioned.