Extreme Pro 2-TB, intermittently Fails to transfer photos from iPad

I just bought the Extreme Pro 2-TB, SSD: It intermittently Fails to transfer photos from my iPad. It took several thousand photos off my iPad 12 Pro Gen-4. Now it goes through the process of transferring selected photos, but it fails to complete the task. Please help.

Hi @WBruceW
Have you opened a Support Case? If not opened, for more information, please contact the SD Technical Support team for best assistance and troubleshooting: