diff --git a/SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/keyRotation/Net_KeyRotationFinishChain_Handler.java b/SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/keyRotation/Net_KeyRotationFinishChain_Handler.java
index c4c5779d..e76f87e4 100644
--- a/SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/keyRotation/Net_KeyRotationFinishChain_Handler.java
+++ b/SHiNE-server/shine-server-net-protocol/src/main/java/server/logic/ws_protocol/JSON/handlers/keyRotation/Net_KeyRotationFinishChain_Handler.java
@@ -19,6 +19,8 @@ import shine.db.entities.BlockEntry;
 import shine.db.entities.KeyRotationCandidateBlockEntry;
 import shine.db.entities.KeyRotationSessionEntry;
 import shine.db.entities.KeyRotationStatus;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.sql.Connection;
 import java.util.Arrays;
@@ -31,6 +33,8 @@ import java.util.concurrent.locks.ReentrantLock;
  * затем переводит ротацию COPYING_CHAIN -> CHAIN_READY.
  */
 public final class Net_KeyRotationFinishChain_Handler implements JsonMessageHandler {
+    private static final Logger log = LoggerFactory.getLogger(Net_KeyRotationFinishChain_Handler.class);
+
     private final KeyRotationSessionsDAO rotations = KeyRotationSessionsDAO.getInstance();
     private final KeyRotationCandidateBlocksDAO candidates = KeyRotationCandidateBlocksDAO.getInstance();
     private final BlocksDAO blocks = BlocksDAO.getInstance();
@@ -103,6 +107,8 @@ public final class Net_KeyRotationFinishChain_Handler implements JsonMessageHand
             rotations.clearError(initial.getId());
             return KeyRotationApiSupport.response(req.getOp(), req.getRequestId(), ready);
         } catch (Exception transitionFailure) {
+            log.warn("KeyRotationFinishChain transition failed: login={}, sessionId={}",
+                    login, initial.getId(), transitionFailure);
             // Идемпотентность для параллельного FinishChain из другой сессии.
             try {
                 KeyRotationSessionEntry now = rotations.getActiveByLogin(login);
diff --git a/shine-UI/js/services/key-rotation-service.js b/shine-UI/js/services/key-rotation-service.js
index 71e088fe..4d19f5ab 100644
--- a/shine-UI/js/services/key-rotation-service.js
+++ b/shine-UI/js/services/key-rotation-service.js
@@ -79,6 +79,11 @@ export class KeyRotationClient {
     const cutoff=Number(rotation.forkFromBlock); const source=String(rotation.sourceBlockchainName||'');
     if(!source || !Number.isInteger(cutoff) || cutoff<0) throw new Error('Некорректное состояние ротации');
     if(String(newBundle?.blockchainPair?.publicKeyB64||'') !== String(rotation.newBlockchainKey||'')) throw new Error('Новый пароль выводит другой blockchain key');
+    const total=cutoff+2;
+    if(Number(rotation.progressCurrent)||0 >= total) {
+      onProgress({ phase:'copy', current:total, total });
+      return;
+    }
     const owner32=base64ToBytes(newBundle.blockchainPair.publicKeyB64);
     const privateKey=newBundle.blockchainPair.privateKey;
     let start=Math.max(0, Math.min(cutoff+1, Number(rotation.progressCurrent)||0));
@@ -106,10 +111,11 @@ export class KeyRotationClient {
       reasonCode:rotation.reasonCode,
       comment:rotation.comment,
     });
-    const techFrame=makeFrame({ prevHash:rotation.forkFromHash, blockNumber:cutoff+1, type:0, subType:TECH_FORK_SUBTYPE, version:1, body:forkBody });
+    const techTimestampMs=Number(rotation.createdAtMs)||Number(parentTipTimestampMs)+1000;
+    const techFrame=makeFrame({ prevHash:rotation.forkFromHash, blockNumber:cutoff+1, type:0, subType:TECH_FORK_SUBTYPE, version:1, body:forkBody, timestampMs:techTimestampMs });
     const techRaw=await createAns104DataItem({ owner32, privateKey, data:techFrame, tags:[{name:'App',value:'test5590'}] });
     await this.addCandidate({ blockNumber:cutoff+1, prevBlockHash:rotation.forkFromHash, blockBytesB64:bytesToBase64(techRaw) });
-    onProgress({ phase:'copy', current:cutoff+2, total:cutoff+2 });
+    onProgress({ phase:'copy', current:total, total });
   }
 
   async #sourcePrevHash(source, blockNumber) {