Certificate Verification Failed "unknown certificate lookup failure"

I recently updated libgit2sharp (v0.26.2) to the latest v0.30.0.

Some of my product users are located in Taiwan, some are in China, and some are from Europe and the United States.

Before the upgrade, the company's internal repository could be accessed normally through the Repository.Clone API.
(URL and WorkDir only, no other options)

After the upgrade, users located in China will fail and get an error about SSL/TLS being unable to verify, as shown below.

We tried to troubleshoot other network issues and confirmed that all users were on the same OS version and supported TLS 1.2/1.3 only.

And do cross comparison with git CLI (git v2.43.0).

Everyone can download normally through the CLI, and will not encounter SSL/TLS verification errors when using libgit2sharp v0.26.2.

Only users located in China will encounter SSL/TLS verification failure in libgit2sharp v0.30.0.

Version of LibGit2Sharp (release number or SHA1)

v0.30.0

Operating system(s) tested; .NET runtime tested

Windows11
OS Build 22631.3593
Windows Feature Experience Pack 1000.22700.1003.0

.NET Framework 4.7.2

從 Repository.Clone API 開始，比較 libgit2sharp v0.26.2 與 v0.30.0 之間的憑證驗證行為。在受影響的環境中使用 Windows 11 和 .NET Framework 4.7.2 重現此失敗；當內部儲存庫可以在沒有 SSL/TLS 驗證錯誤的情況下完成複製時，即表示完成。