Reproduction steps:
1. Open the attached “unity-secondary-texture-bug.zip” project
2. Open the “SampleScene” scene
3. Observe the Scene or the Game view

Expected result: The first sprite is rendered with the letters “AA” and the second is rendered with the letters“BB”
Actual result: The first sprite is rendered with the letters “ABB”

Reproducible with: 2022.3.21f1, 2022.3.23f1, 2023.2.18f1, 6000.0.0b14
Not reproducible with: 2021.3.37f1, 2022.3.20f1

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

Workaround: The reporter noted a workaround in the 2022.3.23f1 version where installing the 2D Animation package fixes the issue, but the fix is temporary

Notes:
- The “Sprite Atlas” needs to be reimported for the issue to appear or disappear in some versions
- Also reproducible in the Player
- Generated atlas needs to be at least 2 pages to reproduce