diff --git a/src/controllers/HsBackendController.ts b/src/controllers/HsBackendController.ts
index a663215..f22a588 100644
--- a/src/controllers/HsBackendController.ts
+++ b/src/controllers/HsBackendController.ts
@@ -39,7 +39,7 @@ import { isMatrixInviteToRoomRequestDTO } from "../fi/hg/matrix/types/request/in
 import { createMatrixInviteToRoomResponseDTO } from "../fi/hg/matrix/types/response/inviteToRoom/MatrixInviteToRoomResponseDTO";
 import { isMatrixTextMessageDTO } from "../fi/hg/matrix/types/message/textMessage/MatrixTextMessageDTO";
 import { createSendEventToRoomWithTnxIdResponseDTO } from "../fi/hg/matrix/types/response/sendEventToRoomWithTnxId/SendEventToRoomWithTnxIdResponseDTO";
-import { isMatrixCreateRoomDTO } from "../fi/hg/matrix/types/request/createRoom/MatrixCreateRoomDTO";
+import { explainMatrixCreateRoomDTO, isMatrixCreateRoomDTO } from "../fi/hg/matrix/types/request/createRoom/MatrixCreateRoomDTO";
 import { createMatrixCreateRoomResponseDTO, MatrixCreateRoomResponseDTO } from "../fi/hg/matrix/types/response/createRoom/MatrixCreateRoomResponseDTO";
 import { isMatrixJoinRoomRequestDTO } from "../fi/hg/matrix/types/request/joinRoom/MatrixJoinRoomRequestDTO";
 import { createMatrixJoinRoomResponseDTO } from "../fi/hg/matrix/types/response/joinRoom/MatrixJoinRoomResponseDTO";
@@ -645,15 +645,17 @@ export class HsBackendController {
     ): Promise<ResponseEntity<ReadonlyJsonObject | MatrixErrorDTO>> {
         try {
 
+            LOG.debug(`createRoom: body = `, body);
             if (!isMatrixCreateRoomDTO(body)) {
+                LOG.debug(`Body invalid: ${explainMatrixCreateRoomDTO(body)}`);
                 return ResponseEntity.badRequest<MatrixErrorDTO>().body(
                     createMatrixErrorDTO(MatrixErrorCode.M_UNKNOWN,`Body not MatrixCreateRoomDTO`)
                 ).status(400);
             }
 
-            LOG.debug(`accountWhoAmI: accessHeader = `, accessHeader);
+            LOG.debug(`createRoom: accessHeader = `, accessHeader);
             const accessToken = AuthorizationUtils.parseBearerToken(accessHeader);
-            LOG.debug(`accountWhoAmI: accessToken = `, accessToken);
+            LOG.debug(`createRoom: accessToken = `, accessToken);
 
             LOG.debug(`createRoom: requestDto: `, body);
             const responseDto : MatrixCreateRoomResponseDTO = await this._matrixServer.createRoom(accessToken, body);
diff --git a/src/fi/hg/core b/src/fi/hg/core
index 3e78a40..a3a4ec1 160000
--- a/src/fi/hg/core
+++ b/src/fi/hg/core
@@ -1 +1 @@
-Subproject commit 3e78a400168e1da0bb01b377ba733566896c7738
+Subproject commit a3a4ec1970ec9996717cd03cb7fb2d7e4f46d84a
diff --git a/src/fi/hg/matrix b/src/fi/hg/matrix
index c3c2be3..6edb1c3 160000
--- a/src/fi/hg/matrix
+++ b/src/fi/hg/matrix
@@ -1 +1 @@
-Subproject commit c3c2be3520bef7252d8ff3e30e3a73e6c06db7c2
+Subproject commit 6edb1c3511b70d992c616f41f732bf3cd950833b