There are a lot of unicode characters that the editor currently doesn't support. If you attempt to use an unsupported character in the name of an Asset or GameObject, the editor considers it valid but simply doesn't display anything - this could potentially lead to some user confusion or problems referencing assets.

Examples of unsupported characters:

U+1402
U+26EA
U+1F4A9

Ideally we should be doing some form of validation. As per the Unicodes standards, U+25A1 □ WHITE SQUARE can be substituted in to represent characters that the font may not support. See http://unicode.org/charts/PDF/U25A0.pdf

1. Install Unity
2. Open Unity
3. Load the attached project
4. Look in the assets folder and locate the scene file
5. Right click on the file and select Show in Explorer
6. Compare the name of the file in the system explorer to the name of the file in Unity

Expected Result:
The asset name in Unity should represent the system filename as closely as possible.

Actual Result:
The asset name is completely blank.

Tested on Windows.

Occurs on 2019.1.0a13, 2018.3.0f2