[!! IMPORTANT !! ] I WAS NOT ABLE TO REPRO THIS ISSUE AFTER IT CONSITENTLY OCCURING MULTIPLE TIMES IN A ROW [!! IMPORTANT !! ]
The below, however, are the steps that led to this occuring multiple times when I was able to repro it consistently:

Repro Steps:

1) Download the attached SkullIconWithFrame.svg

2) Create a Project with a MainPage.xaml

3) Create a Component, and right-click its RootGrid, and under the 'Edit' menu, select 'Import SVG', and import the attached SkullIconWithFrame.svg. This will place it on the Stage of the Component.

4) Set the Alignment of the Component Root to Centre/Centre so that it collapses to fit the square size of the SVG asset.

5) Expand the Navigator to reveal the Canvas auto-generated when importing an SVG, then right-click it, and navigate to Layout --> Replace With --> Viewbox

6) Save the Component.

7) Navigate to MainPage.xaml, and place the Component onto the Stage in its Grid, and set its Width to 512.

8) Set a Binding for the Component's Height to be: Relative --> Self -->ActualWidth. This will make the Height value of the Component always mirror its Width value.

9) Verify that the Binding was correctly set and is functional, by clicking and dragging the Width value. This should result in the icon getting proportionally bigger/smaller.

10) Enter the Component, and expand all layers in the Navigator. You will find layers named from _0 to _33.

11) Select all layers from _0 to _33, whilst excluding the layer named "DO_NOT_MOVE".

12) With all 34 Paths selected, and with the Selection Tool [V] equipped, use the keyboard arrowkeys to nudge all Paths in any direction by a couple nudges.

13) Save the Component and return to MainPage.xaml

Observe how the Component is no longer visible on Stage.
Observe when selecting the Component in the Navigator, the Component's Height binding has been wiped.