[Fiftybears]

Months ago I've upgraded the storage in my Libra 2, and it's mostly working perfectly, the only problem being around file transfers. When I transfer files and eject through calibre, about 50% of the time it's unresponsive for about a minute before it restarts, and the files I added aren't there. In the case it ejects and processes the books as intended, they show up as normal. This also happens whenever I update metadata through KoboUtilities.
Is this something to do with the storage being much bigger than it's supposed to handle, or is it just some form of user error I might have done when setting up the new card? Should I just overlook it and accept it as a quirk of the device now?