ArgumentOutOfRangeException when selecting Aseprite file that does not have the first frame of the first animation

Package: 2D Aseprite Importer

1.2.X

1.2.1

1.1.X

1.1.8

How to reproduce:

1. Open the project “IN-89055_Aseprite”
2. In the Project window, click on the “IN-89055_HasteH.aseprite” file
3. Observe the Console window errors

Expected result: No console error “ArgumentOutOfRangeException: …”
Actual result: Error displayed “ArgumentOutOfRangeException: …”

Reproducible with: 1.0.0 (2021.3.24f1), 1.1.7(2021.3.47f1, 2022.3.55f1, 6000.0.33f1), 1.2.0 (6000.1.0a10)

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Notes:

Note: Issue is highly inconsistent when reproducing, initially it was not reproducible on older versions and some versions throw "No Sprites or Texture are generated..." errors, however downgrading and upgrading the package fixes the errors and the bug is once again visible.