
Dear @chong aik yong
Thank you so much for contacting Microsoft Q&A Forum and I sincerely apologize for the inconvenience that cause to you.
I appreciate for bringing the OneDrive thumbnail issue to our attention. I completely understand how frustrating this has been, especially when your work depends on quickly previewing images and videos. I truly empathize with the inconvenience this has caused you.
Therefore, I have tried my best to research in all material documents about it, and I found these articles that may be related to your case, and you can consider trying them to see if they can help:
- OneDrive Not showing Picture Thumbnails: 7 Ways to Fix!
- Fix Thumbnails not showing in Onedrive folder
Note: Please note that our support is limited to providing guidance based on official Microsoft documentation. Any third-party resources or references shared are intended solely for informational or consultative purposes. Microsoft does not guarantee the accuracy, reliability, or continued availability of third-party content, and we recommend exercising discretion when referring to such materials.
Additionally, I highly recommend submitting feedback directly to Microsoft via the OneDrive app or Microsoft Feedback Portal. The more users report an issue, the higher the chance it gets addressed in future updates. Your action can help Microsoft continues to evolve Outlook’s features based on your input, so this could be considered for future plans.
I hope this information can help you. And I truly appreciate your understanding and patience in this matter as I really want to help you as much as I can, but it is beyond of my control because I'm limited in my forum moderator role and cannot access internal databases to assist you directly. Also, if I have any chance to have your contribution to our forum, it can help others in our community who find the same problem, and it build our platform stronger every day.
Once again, I appreciate for your time and understanding.
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