I think most of us build in the console, I'll try to replicate whenever there's an updateSurprised no one else has said anything about the custom build web interface only showing cancel when it's done an action (eg update), i know it's just a cosmetic issue of it not switching to a close box. Last tried it with Jun 14 2021, 17:15:48 Build and CustomBuild 2.0.0 (rev: 2722), everything completes and the kill process button disappears. Also once in a while it just stops updating the browser even though it's done, only way to fix is to reload the web page.