yamt-vita VS PSVita-StorageMgr

Another possibility: I've been told that some users who formatted their SD2Vita cards on-device using YAMT to format it as TexFAT will sometimes encounter issues, as the TexFAT format isn't always cooperative with Windows... It's not supposed to happen, but apparently it does sometimes.

Do 32K (64 with 256Gb) cluster size and update to YAMT. This also makes it texfat wich improves read / writes.

You might find YAMT useful if you have been using storage manager or other sd2vita application.

Do you have the plugin for sd2vita, set up properly? Are you using YAMT or storagemanager? Has the 64gb micro sd been properly formatted to work with the vita's sd2vita?

Which sd2vita driver (plugin) do you have installed? YAMT or storagemanager? Or did you install using vitaDeploy?

Ever heard of YAMT?

Also I think its time for you to move away from "gamesd" and move to something more modern like yamt or storage mananger.

I dunno. But you can try and use https://github.com/CelesteBlue-dev/PSVita-StorageMgr instead. It does the same thing, just in another manner. I had trouble with yamt, so I still use storagemgr to this day

Storage Manager A Kernel plugin that automatically mounts/redirects any storage device to any mount point; Popular plugin for mounting sd2vita (CelesteBlue)

Don't use USBMC, rather use storagemgr (https://github.com/CelesteBlue-dev/PSVita-StorageMgr) as it's "newer" using some of the usbmc code (or YAMT? yet I haven't actually tried it with an HDD)

Do you have the plugin for sd2vita, set up properly? Are you using YAMT or storagemanager? Has the 64gb micro sd been properly formatted to work with the vita's sd2vita?

Which sd2vita driver (plugin) do you have installed? YAMT or storagemanager? Or did you install using vitaDeploy?

Also I think its time for you to move away from "gamesd" and move to something more modern like yamt or storage mananger.

StorageMgr and yamt. Both has its advantages and disadvantages. I find, storage manager for ease of use, yamt for better read speed. I say for now, use storagemanager and once you're familiar with the Vita and its working graduate to yamt.

Storage Manager A Kernel plugin that automatically mounts/redirects any storage device to any mount point; Popular plugin for mounting sd2vita (CelesteBlue)

When on 3.73 you can only use Storagemgr.

The more involved guide says to use storage manager, given how messed up your set is currently maybe use this until your more comfortable and familiar with the Vita and its set than move to yamt later. Remember that the sd2vita should be ux0.