Hello,
I share with you my experience using Gigabytes SanDisk Ultra microSDHC (UHS50, 5/15, SSD )
when using CMD18 ( for read multiblocks), the µSD cards hang-up and no way to recover them, the only way is hardware reset ( power shut-down).
If you experiment such strange behavior with SanDisk µSD cards, please share with me your experience and the solution that you found.
Many thanks in advance.
Best regards.