Looking at the error message when trying to create a new vault on an SDCard (obsidian 1.0.5, Android 10)
Path I was trying to use was /storage/22E7-0E12/Documents while the error mesasge was
content://com.android.externalstorage.documents/tree/22E7-0E12%3ADocuments/documents/22E7-0E12%3ADocuments
The part of the path has been appended to the end of the path in the error message. Also, character %3A is the : character, not sure why that character is being used midway through a directory path.
Could that be why permissions aren’t working, the path Obsidian is requesting permissions for doesn’t exist.