Are you using the Search card logging on the board? If so can you try disable it and see if you have any issues as it might be a SD card bug due to DMA mode causing an issue.
Its a longshot, but worth a try
Are you using the Search card logging on the board? If so can you try disable it and see if you have any issues as it might be a SD card bug due to DMA mode causing an issue.
Its a longshot, but worth a try