Hi Liwei, thank you for your feedback!

As it seems that you may run into memory limitations.Here is a guide from our Help Center that outline some of the ways you can adapt your files so they work within these limitations: Reduce Memory usage in files

If you are still having issue with the memory usage, feel free to reach out directly to our support team so they can have a closer look at your file: Submit a bug report

Make sure to use your Figma email account, and please include a link to the file, and grant ‘edit access’ to support-share@figma.com so they can investigate it further. Thanks!