Repro Steps:

(Note that you will need an SVG asset available to complete the steps below. For the purpose of reproducing this crash, a slightly more complex SVG shape is better)

1) Create Page
2) Right-Click on the Page's Root Grid, and from the Context Menu, select Edit-->Import SVG.
3) Select an SVG, which will import it to the Page.
4) Navigate to the Animations Panel and create a new Storyboard. Upon the creation, the Timeline will appear, and you will be entered into Storyboard 'Edit' mode.
5) Select the Path Selection (Shortcut [A] ), and click on any anchor point in the SVG Path.
6) Click and Drag the anchor point in any direction.

Observe how the Anchor point has successfully been moved.

7) Click and Drag further anchor points in all sorts of positions, including some outward away from the shape, and some inward 'inside' of the shape (the 'inward' repositioning appear to be the most reliable way to crash)

Observe Studio crashing.

Expected Results: Multiple anchor points can have their positions changed in a Storyboard without crashing the application.