SanDisk Memory zone does not detect the 32gb memory card on my Samsung TAB

I  have inserted a 32GB SanDisk SD card in my Neuropad2 tablet (Cortex A8 processor, 8GB internal memory,…) after having it FAT32 formatted. The SD card is correctly mounted, I can save files on it via ES File Explorer under \mnt\extsd, and I can see it on my Windows Explorer when the tablet is connected via USB in USB mass storage mode.

SanDisk Memory zone does not see the external 32GB SD card but only shows the internal memory. How can I solve this issue?