diff --git a/frontend/src/utilities/__tests__/utils.spec.ts b/frontend/src/utilities/__tests__/utils.spec.ts
index 906c5741ef..04f4135917 100644
--- a/frontend/src/utilities/__tests__/utils.spec.ts
+++ b/frontend/src/utilities/__tests__/utils.spec.ts
@@ -1,31 +1,89 @@
 import { asEnumMember, isEnumMember } from '~/utilities/utils';
 
+enum Test {
+  first = '1st',
+  second = '2nd',
+}
+
+enum TestMixed {
+  first = 1,
+  second = '2nd',
+  third = '3rd',
+}
+
+enum TestNumeric {
+  first,
+  second,
+}
+
 describe('asEnumMember', () => {
-  enum Test {
-    first = 1,
-    second = 2,
-  }
-  it('should return enum member', () => {
-    expect(asEnumMember(1, Test)).toBe(Test.first);
-    expect(asEnumMember(2, Test)).toBe(Test.second);
-    expect(asEnumMember(3, Test)).toBe(null);
+  it('should return enum member for string enums', () => {
+    expect(asEnumMember('1st', Test)).toBe(Test.first);
+    expect(asEnumMember('2nd', Test)).toBe(Test.second);
+    expect(asEnumMember(1, Test)).toBe(null);
     expect(asEnumMember('first', Test)).toBe(null);
     expect(asEnumMember('second', Test)).toBe(null);
+    expect(asEnumMember('unknown', Test)).toBe(null);
     expect(asEnumMember(null, Test)).toBe(null);
   });
+
+  it('should return enum member for mixed enums', () => {
+    expect(asEnumMember(1, TestMixed)).toBe(TestMixed.first);
+    expect(asEnumMember('2nd', TestMixed)).toBe(TestMixed.second);
+    expect(asEnumMember('3rd', TestMixed)).toBe(TestMixed.third);
+    expect(asEnumMember('1', TestMixed)).toBe(null);
+    expect(asEnumMember(2, TestMixed)).toBe(null);
+    expect(asEnumMember('first', TestMixed)).toBe(null);
+    expect(asEnumMember('second', TestMixed)).toBe(null);
+    expect(asEnumMember('third', TestMixed)).toBe(null);
+    expect(asEnumMember('unknown', TestMixed)).toBe(null);
+    expect(asEnumMember(null, TestMixed)).toBe(null);
+  });
+
+  it('should return enum member for numeric enums', () => {
+    expect(asEnumMember(0, TestNumeric)).toBe(TestNumeric.first);
+    expect(asEnumMember(1, TestNumeric)).toBe(TestNumeric.second);
+    expect(asEnumMember('1', TestNumeric)).toBe(null);
+    expect(asEnumMember(2, TestNumeric)).toBe(null);
+    expect(asEnumMember('first', TestNumeric)).toBe(null);
+    expect(asEnumMember('second', TestNumeric)).toBe(null);
+    expect(asEnumMember('unknown', TestNumeric)).toBe(null);
+    expect(asEnumMember(null, TestNumeric)).toBe(null);
+  });
 });
 
 describe('isEnumMember', () => {
-  enum Test {
-    first = 1,
-    second = 2,
-  }
-  it('should identify enum member', () => {
-    expect(isEnumMember(1, Test)).toBe(true);
-    expect(isEnumMember(2, Test)).toBe(true);
-    expect(isEnumMember(3, Test)).toBe(false);
+  it('should return enum member for string enums', () => {
+    expect(isEnumMember('1st', Test)).toBe(true);
+    expect(isEnumMember('2nd', Test)).toBe(true);
+    expect(isEnumMember(1, Test)).toBe(false);
     expect(isEnumMember('first', Test)).toBe(false);
     expect(isEnumMember('second', Test)).toBe(false);
+    expect(isEnumMember('unknown', Test)).toBe(false);
     expect(isEnumMember(null, Test)).toBe(false);
   });
+
+  it('should identify enum member for mixed enums', () => {
+    expect(isEnumMember(1, TestMixed)).toBe(true);
+    expect(isEnumMember('2nd', TestMixed)).toBe(true);
+    expect(isEnumMember('3rd', TestMixed)).toBe(true);
+    expect(isEnumMember('1', TestMixed)).toBe(false);
+    expect(isEnumMember(2, TestMixed)).toBe(false);
+    expect(isEnumMember('first', TestMixed)).toBe(false);
+    expect(isEnumMember('second', TestMixed)).toBe(false);
+    expect(isEnumMember('third', TestMixed)).toBe(false);
+    expect(isEnumMember('unknown', TestMixed)).toBe(false);
+    expect(isEnumMember(null, TestMixed)).toBe(false);
+  });
+
+  it('should identify enum member for numeric enums', () => {
+    expect(isEnumMember(0, TestNumeric)).toBe(true);
+    expect(isEnumMember(1, TestNumeric)).toBe(true);
+    expect(isEnumMember('1', TestNumeric)).toBe(false);
+    expect(isEnumMember(2, TestNumeric)).toBe(false);
+    expect(isEnumMember('first', TestNumeric)).toBe(false);
+    expect(isEnumMember('second', TestNumeric)).toBe(false);
+    expect(isEnumMember('unknown', TestNumeric)).toBe(false);
+    expect(isEnumMember(null, TestNumeric)).toBe(false);
+  });
 });
diff --git a/frontend/src/utilities/utils.ts b/frontend/src/utilities/utils.ts
index 12c4e25c49..2b7def86e2 100644
--- a/frontend/src/utilities/utils.ts
+++ b/frontend/src/utilities/utils.ts
@@ -169,8 +169,10 @@ export const isEnumMember = <T extends object>(
   e: T,
 ): member is T[keyof T] => {
   if (member != null) {
-    const values = Object.values(e);
-    return values.slice(values.length / 2).includes(member);
+    return Object.entries(e)
+      .filter(([key]) => Number.isNaN(Number(key)))
+      .map(([, value]) => value)
+      .includes(member);
   }
   return false;
 };