Looks like new compiler broke https://scratch.mit.edu/projects/624189434
Start a game then click on any card on https://experiments.turbowarp.org/old-compiler/624189434, it should go up a bit to show it's active and if you press the squirrel card you can place it somewhere
On both https://staging.turbowarp.org/624189434 (built from 7de26c9) and https://turbowarp.org/624189434 (built from cd353ca) clicking the cards does nothing, and there is an error
VM244:56 Uncaught TypeError: b0.value.toLowerCase is not a function
b0.value = "0";
while (!("true".toLowerCase() === b0.value.toLowerCase())) {
yield;
}
Very late right now, haven't made minimal repro yet, title is just my guess about what's going on.