"iPad Pro 10"?? What is this device and no iOS device (iPhone, iPad, iPod) has ever has a SD card natively. You might have a third party thing that provides this interface..
Explain in greater detail what you are doing and what your setup is..
I wonder if it's an MFi issue. Which adapter are you using?
I've tried using the Apple SD to lightning adapter on an iPad Pro 12.9 (gen 2 iOS 11.0.2) and that's bringing video and stills across OK.
I suspect it's because you have updated to iOS 11.0.2. I used a third party SD card reader successfully with my iPad mini 2 until two years ago when whatever new iOS came out then made it incompatible. I heard of other people experiencing the same failure. I considered buying an Apple SD card reader but they had an awful reputation so I got a wifi SD card instead, then this year a wifi camera. There's an old thread on here about the problems I had.
There seems to be an adapter so he is not wrong. Here are 2 URLs.
https://www.amazon.com/dp/B072JD3JLB/?tag=macforums0e4-20
https://support.apple.com/en-us/HT202037
I will look around and see if IOS 11 broke something.
By Ipad 10 do you mean iPad Pro 10.5"?
I’m sure you’ve tried but just in case:
Have you done a hard restart?
Tried another SD card?