Exactly, the lack of feedback is the worst part of this. The way it's done right now it looks like the file picker is completely broken and riddled with bugs; the user goes in expecting it to behave normally(given that it looks exactly the same) but it won't show files in the home dir, refuses to even show user-created directories etc.

Even a horrible and annoying pop-up dialog saying something like "file access error" would be better, at least it would be easier to google.