Android WebView NTLM authentication with Sharepoint 2019

I am trying to open some Sharepoint 2019 pages with NTLM authentication in an Android WebView. He keeps asking for credentials and won't let me in. I contacted the Chromium team about this problem, but they did not respond, so I try here if someone else has encountered the same problem with me.

When I try the same method with Sharepoint 2016, it works perfectly but the same code doesn't work on Sharepoint 2019. Has anything changed on the Authentication side on Sharepoint 2019?

Thanks for the answers.