Can I see historial of the information before installing svn mirroring?

It seems that the problem is related to the structure of the SVN repository.
It not had the trunk/tag/branches folders until rev 1412. It means that once the migration to BitBucket started only were migrated the commits since rev 1412.

Hello Jose,

It’s not completely clear why it worked that way, it would require a deeper investigation to find out. Could it be possible to collect add-on logs from the affected repository? They can be collected in the add-on UI on the Support tab (Create ZIP feature).