ImageSharp sometimes add gray rectangle at the bottom right  #2638

Prerequisites

• I have written a descriptive issue title
• I have verified that I am running the latest version of ImageSharp
• I have verified if the problem exist in both DEBUG and RELEASE mode
• I have searched open and closed issues to ensure it has not already been reported

ImageSharp version

3.1.0

Other ImageSharp packages and versions

3.0.1

Environment (Operating system, version and so on)

Windows 11

.NET Framework version

.NET 6

Description

On some picture, ImageSharp will add a gray rectangle at the bottom right,
Original:
Final:

Steps to Reproduce

Download sample projet c#
Replace fb.jpg with the original picture:

try it with version 3.0.1, (no gray square)
erease debug + obj and install the latest version 3.1.2 and execute, (gray square)

Images

No response