I've tried to transfer all my Whatsapp messages from an old Android phone to a new Android phone. I followed all the instructions at Whatsapp's website and previously on Stackoverflow, but am missing the last 10 days of messages in my phone. I've redone the process twice, but have had no luck.
Interestingly, the backups on my old phone grow larger for the first 4 days of backups, but then get smaller in the last two days. But this might just be because they changed from .crypt7 files in the first four days to .crypt8 files for the last two days.
Are there tools available to import specific .crypt* files, or to merge archived backups?