Sandisk Ixpand Drive 3.0: Backup from Iphone 6 to drive stops backing up causes aplication to reboot

Hello,

Back again after several hours and just few tens of picture saved.

A true Night mare that I’m wondering if the saved picture are even reliable backups I can trust.

I have App 5.0.6 with SDK V115_V225 Firmware 2.60.133.80 and Card Type 3.

After surfing on forum, Cards Type 3 seems very popular for comparable unreliable issues.

Thanks in advance for your help, support and advices.