here are a few things you can check and try to resolve the issue:
Ensure that you have entered the correct Vimeo video link in the VideoImageGalleryWidget. Double-check the link and make sure it's the correct URL for the video you're trying to upload.
Check if there are any errors or warnings displayed when you try to upload the Vimeo video. If there are any error messages, try to resolve them based on the information provided in the error message.
Make sure that the Vimeo video is set to "Public" and can be embedded on other websites. If the video is set to "Private" or has any restrictions, it may not play on the CMS.
Check the configuration of the VideoImageGalleryWidget on your CMS. Make sure that the widget is set up correctly and is configured to play Vimeo videos.
Try embedding the Vimeo video using a different widget or method to see if the issue is specific to the VideoImageGalleryWidget or not.
If none of these solutions work, you may need to contact your CMS support team for further assistance.