[Q] When formatting EXT4 Partition, It doesn't stay?

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http://forum.xda-developers.com – I tried using MiniTool Partition Wizard to format my android sd card, I split the first half to be fat32 and the second half to be ext4, when I do that though the ext4 partition doesn't stay... I even tried twrp to partition it, to no avail it said it wasn't able to create the ext4 partition but the fat32 partition was made successfully. (HowTos)