Troubleshooting issues in Facebook Business Manager's Creative Library requires addressing common technical, permission, and asset management problems. The Creative Library is part of Meta's advertising ecosystem, where users create, store, and manage ad creatives like images, videos, and mockups. Issues often arise from incorrect permissions, asset visibility across accounts, or technical constraints like file formats and sizes.

Key findings from the sources:

• Mockup visibility problems often stem from creating assets in the wrong business portfolio or ad account ^[3]
• Video upload failures are frequently caused by incorrect file specifications (size, format, duration) or insufficient permissions ^[7]
• Folder creation errors in the Media Library may occur due to naming conflicts or system glitches ^[6]
• Ad preview issues can result from browser cache problems or incorrect account selection ^[10]

Common Creative Library Issues and Solutions

Mockup and Asset Visibility Problems

The Meta Creative Hub allows users to design ad mockups, but visibility issues are common when assets don't appear where expected. These problems typically occur when creatives are saved under different business portfolios or ad accounts than where users are currently working. The system doesn't automatically sync assets across all accounts, which can lead to confusion about missing files.

• Switching business portfolios: Users may have created mockups in a different portfolio than their current selection. The solution is to:
• Navigate to Business Settings
• Select the correct business portfolio from the dropdown menu
• Check if the missing assets appear ^[3]
• Personal vs. business account confusion: Mockups created in a personal ad account won't be visible in Business Manager. Users must:
• Verify they're logged into the correct Business Manager account
• Check the "Ad Accounts" section to confirm the active account ^[3]
• Limited call-to-action options: Some mockup templates restrict certain CTAs. If options appear grayed out:
• Try a different mockup template
• Check Meta's CTA policy guidelines for restrictions ^[3]
• Delayed image uploads: Large files may take time to process. If images don't appear immediately:
• Wait 10-15 minutes and refresh
• Check file size against Meta's specifications (max 30MB for images) ^[7]

For persistent visibility issues, Meta recommends clearing browser cache or trying a different supported browser. The Creative Hub support page provides specific file requirements for different ad types, which should be consulted before uploading new assets.

Video and Media Upload Failures

Video ads represent a significant portion of Facebook advertising, but upload problems frequently disrupt campaign creation. The most common causes are technical specifications mismatches and permission issues, according to Meta's official troubleshooting guides.

• File format requirements: Videos must be in MP4, MOV, or GIF format. Unsupported formats will fail to upload:
• Recommended codecs: H.264, VP8
• Maximum file size: 4GB
• Duration limits: 15 seconds to 240 minutes depending on placement ^[7]
• Aspect ratio problems: Incorrect ratios cause rendering issues:
• Feed videos: 4:5 to 16:9
• Stories: 9:16
• Carousel videos: 1:1
• Non-compliant videos may appear stretched or cropped ^[7]
• Permission requirements: Users need specific roles to upload videos:
• Page admin or advertiser role for the associated Page
• Ad account admin or advertiser role
• Business Manager admin for business-level assets ^[9]
• Browser and connection issues: Technical problems often stem from:
• Outdated browser versions (Chrome, Firefox, Edge recommended)
• Weak internet connections during upload
• Ad blockers interfering with the upload process ^[10]

Meta provides a video specifications guide that details exact requirements for each placement type. For videos that fail to render properly in previews, the Ads Manager preview tool can help identify issues before final submission. Users experiencing persistent upload failures should check Meta's status dashboard for platform-wide issues or contact support through the Business Help Center.