diff --git a/extensions/default/src/utils/validations/checkSingleFrames.ts b/extensions/default/src/utils/validations/checkSingleFrames.ts
index 677d66f84..ced5facf0 100644
--- a/extensions/default/src/utils/validations/checkSingleFrames.ts
+++ b/extensions/default/src/utils/validations/checkSingleFrames.ts
@@ -1,9 +1,10 @@
 import areAllImageDimensionsEqual from './areAllImageDimensionsEqual';
 import areAllImageComponentsEqual from './areAllImageComponentsEqual';
-import areAllImageOrientationsEqual from './areAllImageOrientationsEqual';
 import areAllImagePositionsEqual from './areAllImagePositionsEqual';
 import areAllImageSpacingEqual from './areAllImageSpacingEqual';
-import { DisplaySetMessage, DisplaySetMessageList } from '@ohif/core';
+import { DisplaySetMessage, DisplaySetMessageList, utils } from '@ohif/core';
+
+const { areAllImageOrientationsEqual } = utils;
 
 /**
  * Runs various checks in a single frame series
diff --git a/platform/app/cypress/integration/measurement-tracking/OHIFCornerstoneHotkeys.spec.js b/platform/app/cypress/integration/measurement-tracking/OHIFCornerstoneHotkeys.spec.js
index b79ad2c93..b0d2f0bd7 100644
--- a/platform/app/cypress/integration/measurement-tracking/OHIFCornerstoneHotkeys.spec.js
+++ b/platform/app/cypress/integration/measurement-tracking/OHIFCornerstoneHotkeys.spec.js
@@ -18,32 +18,32 @@ describe('OHIF Cornerstone Hotkeys', () => {
 
   it('checks if hotkeys "R" and "L" can rotate the image', () => {
     cy.get('body').type('R');
-    cy.get('@viewportInfoMidLeft').should('contains.text', 'F');
-    cy.get('@viewportInfoMidTop').should('contains.text', 'A');
+    cy.get('@viewportInfoMidLeft').should('contains.text', 'P');
+    cy.get('@viewportInfoMidTop').should('contains.text', 'R');
     // Hotkey L
     cy.get('body').type('L');
-    cy.get('@viewportInfoMidLeft').should('contains.text', 'A');
-    cy.get('@viewportInfoMidTop').should('contains.text', 'H');
+    cy.get('@viewportInfoMidLeft').should('contains.text', 'R');
+    cy.get('@viewportInfoMidTop').should('contains.text', 'A');
   });
 
   it('checks if hotkeys "ArrowUp" and "ArrowDown" can navigate in the stack', () => {
     // Hotkey ArrowDown
     cy.get('body').type('{downarrow}');
-    cy.get('@viewportInfoBottomRight').should('contains.text', 'I:11 (2/26)');
+    cy.get('@viewportInfoBottomRight').should('contains.text', 'I:2 (2/26)');
     // Hotkey ArrowUp
     cy.get('body').type('{uparrow}');
-    cy.get('@viewportInfoBottomRight').should('contains.text', 'I:10 (1/26)');
+    cy.get('@viewportInfoBottomRight').should('contains.text', 'I:1 (1/26)');
   });
 
   it('checks if hotkeys "V" and "H" can flip the image', () => {
     // Hotkey H
     cy.get('body').type('h');
-    cy.get('@viewportInfoMidLeft').should('contains.text', 'P');
-    cy.get('@viewportInfoMidTop').should('contains.text', 'H');
+    cy.get('@viewportInfoMidLeft').should('contains.text', 'L');
+    cy.get('@viewportInfoMidTop').should('contains.text', 'A');
     // Hotkey V
     cy.get('body').type('v');
-    cy.get('@viewportInfoMidLeft').should('contains.text', 'P');
-    cy.get('@viewportInfoMidTop').should('contains.text', 'F');
+    cy.get('@viewportInfoMidLeft').should('contains.text', 'L');
+    cy.get('@viewportInfoMidTop').should('contains.text', 'P');
   });
 
   // it('checks if hotkeys "+", "-" and "=" can zoom in, out and fit to viewport', () => {
@@ -68,13 +68,13 @@ describe('OHIF Cornerstone Hotkeys', () => {
   it('checks if hotkey "SPACEBAR" can reset the image', () => {
     // Press multiples hotkeys
     cy.get('body').type('v+++i');
-    cy.get('@viewportInfoMidLeft').should('contains.text', 'A');
-    cy.get('@viewportInfoMidTop').should('contains.text', 'F');
+    cy.get('@viewportInfoMidLeft').should('contains.text', 'R');
+    cy.get('@viewportInfoMidTop').should('contains.text', 'P');
 
     // Hotkey SPACEBAR
     cy.get('body').type(' ');
-    cy.get('@viewportInfoMidLeft').should('contains.text', 'A');
-    cy.get('@viewportInfoMidTop').should('contains.text', 'H');
+    cy.get('@viewportInfoMidLeft').should('contains.text', 'R');
+    cy.get('@viewportInfoMidTop').should('contains.text', 'A');
   });
 
   /*
diff --git a/platform/app/cypress/integration/measurement-tracking/OHIFCornerstoneToolbar.spec.js b/platform/app/cypress/integration/measurement-tracking/OHIFCornerstoneToolbar.spec.js
index 196ce724a..3af31119e 100644
--- a/platform/app/cypress/integration/measurement-tracking/OHIFCornerstoneToolbar.spec.js
+++ b/platform/app/cypress/integration/measurement-tracking/OHIFCornerstoneToolbar.spec.js
@@ -85,7 +85,7 @@ describe('OHIF Cornerstone Toolbar', () => {
     // The exact text is slightly dependent on the viewport resolution, so leave a range
     cy.get('@viewportInfoBottomLeft').should($txt => {
       const text = $txt.text();
-      expect(text).to.include('L:288');
+      expect(text).to.include('L:479');
     });
   });
 
@@ -143,7 +143,7 @@ describe('OHIF Cornerstone Toolbar', () => {
     //Click on reset button
     cy.resetViewport();
 
-    const expectedText = 'W:576L:288';
+    const expectedText = 'W:958L:479';
     cy.get('@viewportInfoBottomLeft').should('have.text', expectedText);
   });
 
@@ -412,8 +412,8 @@ describe('OHIF Cornerstone Toolbar', () => {
   });
 */
   it('check if Flip tool will flip the image in the viewport', () => {
-    cy.get('@viewportInfoMidLeft').should('contains.text', 'A');
-    cy.get('@viewportInfoMidTop').should('contains.text', 'H');
+    cy.get('@viewportInfoMidLeft').should('contains.text', 'R');
+    cy.get('@viewportInfoMidTop').should('contains.text', 'A');
 
     //Click on More button
     cy.get('@moreBtnSecondary').click();
@@ -421,8 +421,8 @@ describe('OHIF Cornerstone Toolbar', () => {
     //Click on Flip button
     cy.get('[data-cy="flipHorizontal"]').click();
     cy.waitDicomImage();
-    cy.get('@viewportInfoMidLeft').should('contains.text', 'P');
-    cy.get('@viewportInfoMidTop').should('contains.text', 'H');
+    cy.get('@viewportInfoMidLeft').should('contains.text', 'L');
+    cy.get('@viewportInfoMidTop').should('contains.text', 'A');
   });
 
   // it('checks if stack sync is preserved on new display set and uses FOR', () => {
diff --git a/platform/core/src/classes/ImageSet.ts b/platform/core/src/classes/ImageSet.ts
index 19b110942..9fc3abb4d 100644
--- a/platform/core/src/classes/ImageSet.ts
+++ b/platform/core/src/classes/ImageSet.ts
@@ -103,7 +103,7 @@ class ImageSet {
       return this.images.sort(combinedSortFunctions[userSpecifiedCriteria]);
     }
     // If image position patient is not available, sort by InstanceNumber
-    if (!isValidForPositionSort(this.images)) {
+    if (!this.isReconstructable || !isValidForPositionSort(this.images)) {
       return this.images.sort(instancesSortCriteria.sortByInstanceNumber);
     }
     // Do image position patient sorting as default sort
diff --git a/extensions/default/src/utils/validations/areAllImageOrientationsEqual.ts b/platform/core/src/utils/areAllImageOrientationsEqual.ts
similarity index 82%
rename from extensions/default/src/utils/validations/areAllImageOrientationsEqual.ts
rename to platform/core/src/utils/areAllImageOrientationsEqual.ts
index 310bd8448..794cb6d8e 100644
--- a/extensions/default/src/utils/validations/areAllImageOrientationsEqual.ts
+++ b/platform/core/src/utils/areAllImageOrientationsEqual.ts
@@ -1,5 +1,5 @@
-import toNumber from '@ohif/core/src/utils/toNumber';
-import { _isSameOrientation } from '@ohif/core/src/utils/isDisplaySetReconstructable';
+import toNumber from './toNumber';
+import { _isSameOrientation } from './isDisplaySetReconstructable';
 
 /**
  * Check is the series has frames with different orientations
diff --git a/platform/core/src/utils/index.ts b/platform/core/src/utils/index.ts
index 8cf54c53a..0955686ca 100644
--- a/platform/core/src/utils/index.ts
+++ b/platform/core/src/utils/index.ts
@@ -44,6 +44,7 @@ import { sopClassDictionary } from './sopClassDictionary';
 import * as MeasurementFilters from './measurementFilters';
 import getClosestOrientationFromIOP from './getClosestOrientationFromIOP';
 import calculateScanAxisNormal from './calculateScanAxisNormal';
+import areAllImageOrientationsEqual from './areAllImageOrientationsEqual';
 // Commented out unused functionality.
 // Need to implement new mechanism for derived displaySets using the displaySetManager.
 
@@ -93,6 +94,7 @@ const utils = {
   MeasurementFilters,
   getClosestOrientationFromIOP,
   calculateScanAxisNormal,
+  areAllImageOrientationsEqual,
 };
 
 export {
diff --git a/platform/core/src/utils/sortStudy.ts b/platform/core/src/utils/sortStudy.ts
index 80a4c41c6..404a4853d 100644
--- a/platform/core/src/utils/sortStudy.ts
+++ b/platform/core/src/utils/sortStudy.ts
@@ -1,6 +1,7 @@
 import { vec3 } from 'gl-matrix';
 import isLowPriorityModality from './isLowPriorityModality';
 import calculateScanAxisNormal from './calculateScanAxisNormal';
+import areAllImageOrientationsEqual from './areAllImageOrientationsEqual';
 
 const compareSeriesDateTime = (a, b) => {
   const seriesDateA = Date.parse(`${a.seriesDate ?? a.SeriesDate} ${a.seriesTime ?? a.SeriesTime}`);
@@ -145,6 +146,11 @@ function isValidForPositionSort(images): boolean {
   if (!referenceImagePositionPatient || !imageOrientationPatient) {
     return false;
   }
+
+  if (!areAllImageOrientationsEqual(images)) {
+    return false;
+  }
+
   return true;
 }