Crash when making Rectangular Pattern with Thin Extrude feature

[wangxl00]

Hi there,

I found a reproducible crashing bug. Please see the attached video.

Reproduce steps:

1. Loft between a circle and a rectangle.

2. Intersect project the body to a middle plane.

3. Thin Extrude the intersection line.

4. Make Rectangular Pattern with the Thin Extrude feature. Fusion 360 crashes.

(Submitted error report 317231918.)

[TheCADWhisperer]

No video?

Can you Attach *.f3d file in last state before crash?

[wangxl00]

Screencast video: https://knowledge.autodesk.com/community/screencast/efeb3b2b-a362-4a8e-b155-bb1ce926691b 

Also attached an f3d file. The file is after reproduce step 3, before step 4. Then doing rectangular pattern on the last feature will crash Fusion 360.

[davebYYPCU]

Thin wall extrude is cutting (a groove)

Pattern has nothing to cut.

Might help....