Disappearing hash files

When i sync my project with the SD card I get 16 error messages of the type shown in the file attached, all relating to different missing files with a hash and BCF extension. Cannot find the files on my Mac (at least not with the hash extension) and if I ignore the messages the card still works fine in the Beatbuddy. Whats happening?

It is a minor bug that will be gone in the next version of the software. Just click through it for now.

OK thanks. I can live with it for now and just glad to understand it is a known and not serious issue.