diff --git a/src/services/context/state/Position.ts b/src/services/context/state/Position.ts
index 88caca58..d5968d37 100644
--- a/src/services/context/state/Position.ts
+++ b/src/services/context/state/Position.ts
@@ -42,6 +42,15 @@ class Position {
 
     // get step
     const currentLevel: TT.Level = levels[lastLevelIndex]
+    if (!currentLevel) {
+      // tutorial complete but not reached completed view
+      const finalLevel = levels[levels.length - 1]
+      return {
+        levelId: finalLevel.id,
+        stepId: finalLevel.steps.length ? finalLevel.steps[finalLevel.steps.length - 1].id : null,
+        complete: true,
+      }
+    }
     let currentStepId: string | null
     if (!currentLevel.steps.length) {
       // no steps available for level
diff --git a/web-app/src/components/Error/index.tsx b/web-app/src/components/Error/index.tsx
index 2a9278c2..5c1bf828 100644
--- a/web-app/src/components/Error/index.tsx
+++ b/web-app/src/components/Error/index.tsx
@@ -14,9 +14,9 @@ const styles = {
     alignItems: 'center' as 'center',
     border: `0.5rem solid ${theme['$color-error-2']}`,
     padding: '1rem',
-    width: '100%',
+    width: '100vw',
     maxWidth: '100%',
-    height: '100%',
+    height: '100vh',
   }),
   content: (theme: Theme) => ({
     textAlign: 'center' as 'center',
diff --git a/web-app/src/containers/Loading/index.tsx b/web-app/src/containers/Loading/index.tsx
index 535946c7..bb55882a 100644
--- a/web-app/src/containers/Loading/index.tsx
+++ b/web-app/src/containers/Loading/index.tsx
@@ -16,8 +16,8 @@ const styles = {
     flexDirection: 'column' as 'column',
     alignItems: 'center' as 'center',
     justifyContent: 'center' as 'center',
-    height: '100%',
-    width: '100%',
+    height: '100vh',
+    width: '100vw',
   },
   processes: {
     padding: '0 1rem',
diff --git a/web-app/src/services/state/actions/context.ts b/web-app/src/services/state/actions/context.ts
index 4a32d440..2ca04032 100644
--- a/web-app/src/services/state/actions/context.ts
+++ b/web-app/src/services/state/actions/context.ts
@@ -79,7 +79,7 @@ const contextActions: ActionFunctionMap<T.MachineContext, T.MachineEvent> = {
 
       const nextPosition: T.Position = {
         levelId: level.id,
-        stepId: level.steps[0].id,
+        stepId: level.steps.length ? level.steps[0].id : null,
       }
 
       return nextPosition
@@ -163,7 +163,7 @@ const contextActions: ActionFunctionMap<T.MachineContext, T.MachineEvent> = {
         const nextLevel = levels[levelIndex + 1]
         const nextPosition = {
           levelId: nextLevel.id,
-          stepId: nextLevel.steps[0].id,
+          stepId: nextLevel.steps.length ? nextLevel.steps[0].id : null,
         }
         return { type: 'NEXT_LEVEL', payload: nextPosition }
       }