[Shotwell] Error: Directory NikonPreview with 21313 entries considered invalid; not read.

[Alexey Fisher]

Hi,
i get this error "Error: Directory NikonPreview with 21313 entries
considered invalid; not read." before shotwell crashes. I even can't
open any photo. It will happen just after start.

First time it happened after i started to import my collection from
other manager (digiKam).
-- 
Regards,
        Alexey