Fixed error with update part

src/pages/(generation)/ListeningGeneration.tsx

@@ -88,6 +88,8 @@ const PartTab = ({
                       } as ListeningPart;
                       return updatedPart;
                     }
+
+					return part;
                   })
                 }
               />
@@ -111,6 +113,9 @@ const PartTab = ({
                         ),
                       } as ListeningPart;
                     }
+
+					return part;
+
                   });
                 }}
               />

src/pages/(generation)/ReadingGeneration.tsx

@@ -93,6 +93,8 @@ const PartTab = ({
                       const updatedPart = { ...part, exercises } as ReadingPart;
                       return updatedPart;
                     }
+
+                    return part;
                   })
                 }
               />
@@ -115,6 +117,8 @@ const PartTab = ({
                         ),
                       } as ReadingPart;
                     }
+
+                    return part;
                   });
                 }}
               />
@@ -137,6 +141,8 @@ const PartTab = ({
                         ),
                       } as ReadingPart;
                     }
+
+                    return part;
                   });
                 }}
               />