I can't create storage on an SD card on a Huawei P10 running Android 9.

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What I’m trying to do

Things I have tried

I can’t create a note vault on an SD card on a Huawei P10 smartphone running Android 9. When I try to create a vault, I get the message: “Failed to create vault. Unable to create directory, unknown reason.” If I create a folder using a file manager and then simply select it in Obsidian, it is selected and recognized, but when I try to create a new note through Obsidian, I get the message: “Error: FILE_NOTCREATED.” Obsidian has been granted permission to access the storage. Is the problem solvable?

Sorry if this is a bit clumsy — I’m not a native English speaker, so I’m using a translator.