Playlists disappeared after latest update?

[simoncn]

MinimServer uses Java APIs to walk the file tree. The Java runtime implements these APIs by making calls to the Linux file system. If the Linux file system encounters an error when reading the name of the next entry in a directory, it returns null. A null return indicates that no more entries are available.

This error could be caused by some other container modifying the directory contents. Perhaps (this is pure speculation on my part) it could also be caused by some other process using a short intensive burst of CPU cycles that causes the read operation in the MinimServer container to time out. A short burst like this would not show in top. Another possibility is that some other container is locking the file system for a short time in some way that prevents the MinimServer container from reading it.