DebuggingCommon ProblemsQuick fixes for frequent Studio and Unreal issues.Tools → CalmUI Studio is missingStudio says Unreal is unavailableThe preview did not update after SaveStudio asks which file version to keepThe screen does not appear in UnrealThe button appears, but its action does nothingA style is ignoredWhat does a CUI#### code mean?A repeated component loses focusAn image is missingKeyboard works, but gamepad focus is missingBackdrop blur is black, missing, or too expensiveShipping reports a stale or incompatible packageLive UpdatesSee saved changes in Studio and Unreal without reopening the screen.Diagnostic CodesWhat each numbered CUI#### code in the Problems panel and CLI output means.