> FB 2.1.3 is unuseable for me. I now get invalid Blob IDs from sinatica
> monitor which do not appear in 2.1.2.
> I've had to revert.
> Sinatica indicate that it is a conflict between client attachments with
> charset NONE and attachments with some other charset. Is this correct? Has
> anyone else experienced invalid blob ID exceptions and find that charset has
> something to do with it?

If this is your case http://tracker.firebirdsql.org/browse/CORE-2602 i'm afraid
you should fix your application to :

a) not use NONE connection charset (any strong reason to use it?)
or
b) not use non-ASCII characters in your queries issued in attachment with NONE charset

Regards,
Vlad