diff --git a/superset-frontend/src/explore/reducers/exploreReducer.ts b/superset-frontend/src/explore/reducers/exploreReducer.ts
index 92829304c37..11e2bdb627b 100644
--- a/superset-frontend/src/explore/reducers/exploreReducer.ts
+++ b/superset-frontend/src/explore/reducers/exploreReducer.ts
@@ -144,7 +144,7 @@ interface SetStashFormDataAction {
 
 interface SliceUpdatedAction {
   type: typeof actions.SLICE_UPDATED;
-  slice: Slice & {
+  slice: Omit<Slice, 'owners'> & {
     owners?: Array<{ value: number; label: string }>;
     slice_name?: string;
   };
@@ -175,7 +175,11 @@ type ExploreAction =
   | SetForceQueryAction
   | HydrateExplore;
 
-interface ExtendedControlState extends ControlState {
+// Extended control state for dynamic form controls - uses Record for flexibility
+// since control configs vary significantly across different control types
+interface ExtendedControlState {
+  [key: string]: unknown;
+  value?: unknown;
   valueKey?: string;
   savedMetrics?: unknown[];
   columns?: unknown[];
diff --git a/superset-frontend/src/features/reports/ReportModal/actions.ts b/superset-frontend/src/features/reports/ReportModal/actions.ts
index 74403a16eae..35e280f0cc1 100644
--- a/superset-frontend/src/features/reports/ReportModal/actions.ts
+++ b/superset-frontend/src/features/reports/ReportModal/actions.ts
@@ -26,6 +26,7 @@ import {
 } from 'src/components/MessageToasts/actions';
 import { isEmpty } from 'lodash';
 import { Dispatch, AnyAction } from 'redux';
+import { ThunkDispatch } from 'redux-thunk';
 import { ReportObject, ReportCreationMethod } from 'src/features/reports/types';
 import { DashboardInfo, ChartsState } from 'src/dashboard/types';
 import { UserWithPermissionsAndRoles } from 'src/types/bootstrapTypes';
@@ -130,7 +131,7 @@ export function fetchUISpecificReport({
 }
 
 const structureFetchAction = (
-  dispatch: Dispatch<AnyAction>,
+  dispatch: ThunkDispatch<ReportRootState, unknown, AnyAction>,
   getState: () => ReportRootState,
 ) => {
   const state = getState();
@@ -169,10 +170,14 @@ export const addReport =
     SupersetClient.post({
       endpoint: `/api/v1/report/`,
       jsonPayload: report,
-    }).then(({ json }) => {
-      dispatch({ type: ADD_REPORT, json } as AddReportAction);
-      dispatch(addSuccessToast(t('The report has been created')));
-    });
+    })
+      .then(({ json }) => {
+        dispatch({ type: ADD_REPORT, json } as AddReportAction);
+        dispatch(addSuccessToast(t('The report has been created')));
+      })
+      .catch(() => {
+        dispatch(addDangerToast(t('Failed to create report')));
+      });
 
 export const EDIT_REPORT = 'EDIT_REPORT' as const;
 
@@ -193,7 +198,9 @@ export const editReport =
     });
 
 export function toggleActive(report: ReportObject, isActive: boolean) {
-  return function toggleActiveThunk(dispatch: Dispatch<AnyAction>) {
+  return function toggleActiveThunk(
+    dispatch: ThunkDispatch<ReportRootState, unknown, AnyAction>,
+  ) {
     return SupersetClient.put({
       endpoint: encodeURI(`/api/v1/report/${report.id}`),
       headers: { 'Content-Type': 'application/json' },
diff --git a/superset-frontend/src/features/reports/ReportModal/reducer.ts b/superset-frontend/src/features/reports/ReportModal/reducer.ts
index 14bd1c5e8dd..e544aa17177 100644
--- a/superset-frontend/src/features/reports/ReportModal/reducer.ts
+++ b/superset-frontend/src/features/reports/ReportModal/reducer.ts
@@ -54,7 +54,7 @@ export default function reportsReducer(
       // functionality changes.
       const reportObject = report.result?.find(
         (r: ReportObject) =>
-          (r as Record<string, number>)[filterField] === resourceId,
+          (r as unknown as Record<string, number>)[filterField] === resourceId,
       );
 
       if (reportObject) {
diff --git a/superset-frontend/src/middleware/logger.test.ts b/superset-frontend/src/middleware/logger.test.ts
index 2c653e3b118..106f5272478 100644
--- a/superset-frontend/src/middleware/logger.test.ts
+++ b/superset-frontend/src/middleware/logger.test.ts
@@ -31,6 +31,7 @@ interface MockStore {
     dashboardInfo: { id: number };
     impressionId: string;
   };
+  dispatch: () => void;
 }
 
 interface LogEventAction {
@@ -52,6 +53,7 @@ describe('logger middleware', () => {
       },
       impressionId: 'impression_id',
     }),
+    dispatch: () => {},
   };
   const action: LogEventAction = {
     type: LOG_EVENT,
diff --git a/superset-frontend/src/utils/common.ts b/superset-frontend/src/utils/common.ts
index 41a8fed11b8..457a7adcb5b 100644
--- a/superset-frontend/src/utils/common.ts
+++ b/superset-frontend/src/utils/common.ts
@@ -173,5 +173,5 @@ export const detectOS = (): OSType => {
 export const isSafari = (): boolean => {
   const { userAgent } = navigator;
 
-  return userAgent && /^((?!chrome|android).)*safari/i.test(userAgent);
+  return Boolean(userAgent && /^((?!chrome|android).)*safari/i.test(userAgent));
 };