SiteMigration : not all the data migrated (no replies)

Hello,

I used the plugin SiteMigration to transfer my piwik data to a new server. On the new server I just create the database, but with no data. So I just have records in the table option (129), in the table site (1) and in the table user (2). All other tables on the new server have 0 record.

So I execute the plugin on the source server. The migration works, no error. But when I compare the source db and the target db, there is some differences, especially on the tables log_action and log_link_visit_action. Look at this 2 pictures :

source :


target :



Furthermore when I compare the graph of the visits over time there huge difference :

on top the target, and on the bottom the source



So I would like to know if it's normal, or if it's a bug ?

Thank you