No, not really, this is already created in the STL's ;-)
I am using the most recent version 2.3.1
Well, I think it's easier, if I share directly my cura profile, so that you'll be able to reproduce the issue: https://1drv.ms/u/s!AgDJkziNTP0NgrtQnQeA_4zm6cPkFg
I can't share the complete model, as I bought them mysel, but here is the Wing part, which creates the same issue: http://www.thingiverse.com/thing:998525/#files
Are you using infill meshes in the per object settings? That's pretty cool!
Which version of cura are you using?
Which steps did you take to make the infill support?
Try setting the global infill setting to 1% and see if that helps.
Please share your model files so that we can recreate the problem.
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