How to reproduce:
1. Open attached project "SVGTesterr.zip"
2. From Project window, drag and drop "mountain-svgrepo-com" to the Hierarchy window
3. In Hierarchy window, select "mountain-svgrepo-com"
4. In Inspector window, change "Draw Mode" to "Sliced" or "Tiled"

Expected result: the "Draw Mode" is changed
Actual result: Unity crashes

Reproducible with: 2018.3.9f1, 2018.3.14f1, 2018.4.1f1, 2019.1.4f1
Not reproducible with: 2018.1.9f2, 2019.2.21f1, 2018.3.8f1
Could not test with: 2019.2, 2019.3 (SVG images are not recognized, errors are thrown)

Fixed in: 2019.3.0a7 (Package version 2.0.0 preview.1)