diff --git a/packages/typedoc-plugin-markdown/src/theme/context/partials/container.body.ts b/packages/typedoc-plugin-markdown/src/theme/context/partials/container.body.ts
index 1e46518e2..a101e1468 100644
--- a/packages/typedoc-plugin-markdown/src/theme/context/partials/container.body.ts
+++ b/packages/typedoc-plugin-markdown/src/theme/context/partials/container.body.ts
@@ -6,7 +6,6 @@ import {
 } from '@plugin/theme/lib/index.js';
 import {
   ContainerReflection,
-  DeclarationReflection,
   ReflectionGroup,
   ReflectionKind,
 } from 'typedoc';
@@ -54,7 +53,7 @@ export function body(
             } else {
               md.push(
                 this.partials.members(
-                  group.children as DeclarationReflection[],
+                  group.children.filter(child => child.isDeclaration()),
                   {
                     headingLevel: options.headingLevel,
                   },
@@ -83,9 +82,9 @@ export function body(
             children: model.children,
           } as ReflectionGroup),
         );
-      } else {
+      } else if (model.children) {
         md.push(
-          this.partials.members(model.children as DeclarationReflection[], {
+          this.partials.members(model.children, {
             headingLevel: options.headingLevel,
           }),
         );
diff --git a/packages/typedoc-plugin-markdown/src/theme/context/partials/container.categories.ts b/packages/typedoc-plugin-markdown/src/theme/context/partials/container.categories.ts
index b8fa21293..6d28c00fe 100644
--- a/packages/typedoc-plugin-markdown/src/theme/context/partials/container.categories.ts
+++ b/packages/typedoc-plugin-markdown/src/theme/context/partials/container.categories.ts
@@ -5,7 +5,6 @@ import {
   sortNoneSectionFirst,
 } from '@plugin/theme/lib/index.js';
 import {
-  DeclarationReflection,
   ReflectionCategory,
   ReflectionKind,
 } from 'typedoc';
@@ -26,9 +25,9 @@ export function categories(
       }
       md.push(this.partials.groupIndex(category));
     } else {
-      const categoryChildren = category.children?.filter(
+      const categoryChildren = category.children.filter(
         (child) => child.kind !== ReflectionKind.Constructor,
-      );
+      ).filter(child => child.isDeclaration());
       if (categoryChildren.length) {
         if (!isNoneSection(category)) {
           md.push(heading(options.headingLevel, category.title));
@@ -37,7 +36,7 @@ export function categories(
           md.push(this.helpers.getCommentParts(category.description));
         }
         md.push(
-          this.partials.members(categoryChildren as DeclarationReflection[], {
+          this.partials.members(categoryChildren, {
             headingLevel: isNoneSection(category)
               ? options.headingLevel
               : options.headingLevel + 1,
diff --git a/packages/typedoc-plugin-markdown/src/theme/context/partials/container.groups.ts b/packages/typedoc-plugin-markdown/src/theme/context/partials/container.groups.ts
index c69e4e8b8..29522f165 100644
--- a/packages/typedoc-plugin-markdown/src/theme/context/partials/container.groups.ts
+++ b/packages/typedoc-plugin-markdown/src/theme/context/partials/container.groups.ts
@@ -6,7 +6,6 @@ import {
 } from '@plugin/theme/lib/index.js';
 import {
   ContainerReflection,
-  DeclarationReflection,
   i18n,
   ProjectReflection,
   ReflectionKind,
@@ -97,7 +96,7 @@ export function groups(
         ) {
           md.push(
             this.partials.propertiesTable(
-              group.children as DeclarationReflection[],
+              group.children.filter(child => child.isDeclaration()),
               {
                 isEventProps,
                 kind: options.kind,
@@ -107,13 +106,13 @@ export function groups(
         } else if (isEnumGroup && this.helpers.useTableFormat('enums')) {
           md.push(
             this.partials.enumMembersTable(
-              group.children as DeclarationReflection[],
+              group.children.filter(child => child.isDeclaration()),
             ),
           );
         } else {
           if (group.children) {
             md.push(
-              this.partials.members(group.children as DeclarationReflection[], {
+              this.partials.members(group.children.filter(child => child.isDeclaration()), {
                 headingLevel: isNoneSection(group)
                   ? options.headingLevel
                   : options.headingLevel + 1,
diff --git a/packages/typedoc-plugin-markdown/src/theme/context/partials/container.members.ts b/packages/typedoc-plugin-markdown/src/theme/context/partials/container.members.ts
index f372940f2..37489d667 100644
--- a/packages/typedoc-plugin-markdown/src/theme/context/partials/container.members.ts
+++ b/packages/typedoc-plugin-markdown/src/theme/context/partials/container.members.ts
@@ -14,8 +14,8 @@ export function members(
     }
     return true;
   };
-  const items = model?.filter((item) => !this.router.hasOwnDocument(item));
-  items?.forEach((item, index) => {
+  const items = model.filter((item) => !this.router.hasOwnDocument(item));
+  items.forEach((item, index) => {
     md.push(
       this.partials.memberContainer(item, {
         headingLevel: options.headingLevel,
diff --git a/packages/typedoc-plugin-markdown/src/theme/context/partials/member.groupIndex.ts b/packages/typedoc-plugin-markdown/src/theme/context/partials/member.groupIndex.ts
index 08d429661..5c3d5b5b5 100644
--- a/packages/typedoc-plugin-markdown/src/theme/context/partials/member.groupIndex.ts
+++ b/packages/typedoc-plugin-markdown/src/theme/context/partials/member.groupIndex.ts
@@ -19,18 +19,18 @@ export function groupIndex(group: ReflectionGroup | ReflectionCategory) {
   if (this.options.getValue('indexFormat').toLowerCase().includes('table')) {
     return getGroupIndexTable(
       this,
-      group.children as DeclarationReflection[] | DocumentReflection[],
+      group.children,
     );
   }
   return getGroupIndexList(
     this,
-    group.children as DeclarationReflection[] | DocumentReflection[],
+    group.children,
   );
 }
 
 export function getGroupIndexList(
   context: MarkdownThemeContext,
-  children: DeclarationReflection[] | DocumentReflection[],
+  children: (DeclarationReflection | DocumentReflection)[],
 ) {
   const filteredChildren =
     children