Not sure if this is related, but having done a Full clean & re-install - exactly as per the installation instructions, I get an unexpected error in SDK Manager. My previous installation (3 weeks ago?) worked flawlessly. I'm using Win 10 x64 with latest B4A, Resources and SDK tools. Also I have tried using both Java (8u261) and Open Java. The screenshot attached is under Java 8u261. When I initially used OpenJava, I got (I think) the same error but repeated twice. That's why I tried switching to JDK 8u261.