Share your experience!
Are you transferring with the inbuilt option or with file commander? I suggest you try the 2nd.
What type/size/speed of SD card you're using? And did you try to format it?
What make of micro SD card are you using?Just found my box the one I have been using since last October is a Sony UHS-I 32GB model number SR-32UYA.Works like a charm
The card could be faulty (even fake). Have seen cases where 32 GB class 10 was actually a 4GB class 4 or so.
Well yes, sometimes it happens you get a fake info on your SD cards. If it's possible try another card made by Sony, SanDisk, Kingstone, or any other known storage cards company.