diff --git a/packages/nocodb/src/db/BaseModelSqlv2.ts b/packages/nocodb/src/db/BaseModelSqlv2.ts
index 6ed0061464..0f2d23a1c2 100644
--- a/packages/nocodb/src/db/BaseModelSqlv2.ts
+++ b/packages/nocodb/src/db/BaseModelSqlv2.ts
@@ -5293,9 +5293,7 @@ class BaseModelSqlv2 {
         await this.model.getColumns(this.context);
 
         await Promise.all(
-          insertDatas.map(
-            async (d) => await this.prepareNocoData(d, true, cookie),
-          ),
+          insertDatas.map((d) => this.prepareNocoData(d, true, cookie)),
         );
       }
 
@@ -6006,10 +6004,21 @@ class BaseModelSqlv2 {
           for (const c of attachmentColumns) {
             if (row[c.column_name]) {
               try {
-                const attachments = JSON.parse(row[c.column_name]);
-                for (const attachment of attachments) {
-                  if (attachment.id) {
-                    fileReferenceIds.push(attachment.id);
+                let attachments;
+                if (typeof row[c.column_name] === 'string') {
+                  attachments = JSON.parse(row[c.column_name]);
+                  for (const attachment of attachments) {
+                    if (attachment.id) {
+                      fileReferenceIds.push(attachment.id);
+                    }
+                  }
+                }
+
+                if (Array.isArray(attachments)) {
+                  for (const attachment of attachments) {
+                    if (attachment.id) {
+                      fileReferenceIds.push(attachment.id);
+                    }
                   }
                 }
               } catch (e) {
diff --git a/packages/nocodb/src/modules/jobs/migration-jobs/init-migration-jobs.ts b/packages/nocodb/src/modules/jobs/migration-jobs/init-migration-jobs.ts
index 604f44fcaa..720c4d33b9 100644
--- a/packages/nocodb/src/modules/jobs/migration-jobs/init-migration-jobs.ts
+++ b/packages/nocodb/src/modules/jobs/migration-jobs/init-migration-jobs.ts
@@ -46,6 +46,11 @@ export class InitMigrationJobs {
 
     // check for lock
     if (migrationJobsState.locked) {
+      if (migrationJobsState.instance === instanceUuid) {
+        // lock taken by this instance
+        return;
+      }
+
       // migration job is running, make sure it's not stalled by checking after 10 mins
       // stall check is updated every 5 mins
       setTimeout(() => {
@@ -71,7 +76,7 @@ export class InitMigrationJobs {
     await updateMigrationJobsState(migrationJobsState, migrationJobsState);
 
     // wait for 2 seconds to confirm lock
-    await new Promise((resolve) => setTimeout(resolve, 2000));
+    await new Promise((resolve) => setTimeout(resolve, 5000));
 
     const confirmState = await getMigrationJobsState();
 
diff --git a/packages/nocodb/src/modules/jobs/migration-jobs/nc_job_001_attachment.ts b/packages/nocodb/src/modules/jobs/migration-jobs/nc_job_001_attachment.ts
index 2b763e48dc..5ecfc31202 100644
--- a/packages/nocodb/src/modules/jobs/migration-jobs/nc_job_001_attachment.ts
+++ b/packages/nocodb/src/modules/jobs/migration-jobs/nc_job_001_attachment.ts
@@ -140,19 +140,19 @@ export class AttachmentMigrationProcessor {
         }
       });
 
-      await new Promise((resolve, reject) => {
-        fileScanStream.on('end', resolve);
-        fileScanStream.on('error', reject);
-      })
-        .then(() => {
-          filesCount += fileReferenceBuffer.length;
-          this.log(`Completed scanning with ${filesCount} files`);
-        })
-        .catch((e) => {
-          this.log(`There was an error while scanning files`);
-          this.log(e);
-          err = e;
+      try {
+        await new Promise((resolve, reject) => {
+          fileScanStream.on('end', resolve);
+          fileScanStream.on('error', reject);
         });
+      } catch (e) {
+        this.log(`There was an error while scanning files`);
+        this.log(e);
+        throw e;
+      }
+
+      filesCount += fileReferenceBuffer.length;
+      this.log(`Completed scanning with ${filesCount} files`);
 
       if (err) {
         throw err;