diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e1c4ccf7..0c25d23b2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Improved the language localization for Japanese (`ja`)
 - Upgraded `nestjs` from version `11.1.21` to `11.1.27`
 
+### Fixed
+
+- Fixed a recurring issue where single-value fields were incorrectly validated as arrays in various endpoints
+
 ## 3.18.0 - 2026-06-28
 
 ### Added
diff --git a/libs/common/src/lib/dtos/create-asset-profile.dto.ts b/libs/common/src/lib/dtos/create-asset-profile.dto.ts
index 1bd3ba9a8..73f0d3f5a 100644
--- a/libs/common/src/lib/dtos/create-asset-profile.dto.ts
+++ b/libs/common/src/lib/dtos/create-asset-profile.dto.ts
@@ -11,11 +11,11 @@ import {
 } from 'class-validator';
 
 export class CreateAssetProfileDto {
-  @IsEnum(AssetClass, { each: true })
+  @IsEnum(AssetClass)
   @IsOptional()
   assetClass?: AssetClass;
 
-  @IsEnum(AssetSubClass, { each: true })
+  @IsEnum(AssetSubClass)
   @IsOptional()
   assetSubClass?: AssetSubClass;
 
diff --git a/libs/common/src/lib/dtos/create-order.dto.ts b/libs/common/src/lib/dtos/create-order.dto.ts
index dfd0d8aa5..9236a12d8 100644
--- a/libs/common/src/lib/dtos/create-order.dto.ts
+++ b/libs/common/src/lib/dtos/create-order.dto.ts
@@ -21,11 +21,11 @@ export class CreateOrderDto {
   @IsString()
   accountId?: string;
 
-  @IsEnum(AssetClass, { each: true })
+  @IsEnum(AssetClass)
   @IsOptional()
   assetClass?: AssetClass;
 
-  @IsEnum(AssetSubClass, { each: true })
+  @IsEnum(AssetSubClass)
   @IsOptional()
   assetSubClass?: AssetSubClass;
 
@@ -66,7 +66,7 @@ export class CreateOrderDto {
   @IsOptional()
   tags?: string[];
 
-  @IsEnum(Type, { each: true })
+  @IsEnum(Type)
   type: Type;
 
   @IsNumber()
diff --git a/libs/common/src/lib/dtos/update-asset-profile.dto.ts b/libs/common/src/lib/dtos/update-asset-profile.dto.ts
index ba3868482..7096023b3 100644
--- a/libs/common/src/lib/dtos/update-asset-profile.dto.ts
+++ b/libs/common/src/lib/dtos/update-asset-profile.dto.ts
@@ -18,11 +18,11 @@ import {
 } from 'class-validator';
 
 export class UpdateAssetProfileDto {
-  @IsEnum(AssetClass, { each: true })
+  @IsEnum(AssetClass)
   @IsOptional()
   assetClass?: AssetClass;
 
-  @IsEnum(AssetSubClass, { each: true })
+  @IsEnum(AssetSubClass)
   @IsOptional()
   assetSubClass?: AssetSubClass;
 
diff --git a/libs/common/src/lib/dtos/update-order.dto.ts b/libs/common/src/lib/dtos/update-order.dto.ts
index 3656a8043..7843f142c 100644
--- a/libs/common/src/lib/dtos/update-order.dto.ts
+++ b/libs/common/src/lib/dtos/update-order.dto.ts
@@ -20,11 +20,11 @@ export class UpdateOrderDto {
   @IsString()
   accountId?: string;
 
-  @IsEnum(AssetClass, { each: true })
+  @IsEnum(AssetClass)
   @IsOptional()
   assetClass?: AssetClass;
 
-  @IsEnum(AssetSubClass, { each: true })
+  @IsEnum(AssetSubClass)
   @IsOptional()
   assetSubClass?: AssetSubClass;