Hi Matt,

You up you are quite possibly right about the cause. As noted it looks like a buffer and offset issue. What I forgot to mention is that the restored data structure after the 8 bytes of edit stores and retrieves just fine. It could be that there are no missing bytes (as I speculated above) but that it is simply a locking issue as you suggest. Catching the croak and the datastructure will prove that either way. It will be interesting to find out.