FWIW, I think you can ignore the line that says "The character sheet encountered an error, character sheet integration may not function correctly." I get it consistently and I think it's apocryphal. At least, it has never affected the sandbox or any sheet-related API function I am aware of. I use this scriptlet to notify me of which codebase is running: log(`API Restarted: ${typeof $20 !== "undefined" ? "EXPERIMENTAL" : "PRODUCTION"}`); on('ready',()=>sendChat('',`/w gm <b>Server: <code>${typeof $20!=="undefined"?"🟢 EXPERIMENTAL 🟢":"🔴 PRODUCTION 🔴"}</code></b>`,null,{noarchive:true})); This will start the sandbox spin up with "API Restarted: EXPERIMENTAL", so you can be sure it "caught", as well as whisper a notification in chat. I don't trust the dropdown button.