Problems
A project-wide scan for silent no-ops: a mistyped variable, a deleted prefab a Spawn still points at.
About 4 minutes
Most broken references in WristForge don't throw an error. They just silently do nothing (an Award naming a variable that no longer exists, a Go to screen pointing at a deleted screen, a Spawn referencing a removed prefab). That's a deliberate design choice elsewhere in the editor (skip-unknown rather than crash), but it makes typos easy to miss. The Problems window is the fix: it walks every screen and every Action Sheet, checking each reference against what actually still exists, and lists every one it finds.
What it checks
Unknown variable names, missing screens, prefabs, dialogue assets, items, Action Sheets, and Level Sets. Anything an action, binding, or condition points at by name or path.

If a feature "just doesn't do anything," check here first: a silently-skipped bad reference is a far more common cause than an actual engine bug.