Can't import into 3.5 rc 2

Servoy Developer
Version 3.5 b2-build 502
Java version 1.5.0_10-b03 (Windows XP)

I’m trying to import into Servoy 3.5 beta RC 2 but I run into the same error
every time:

com.servoy.j2db.persistence.RepositoryException: com.servoy.j2db.persistence.RepositoryException: org.postgresql.util.PSQLException: ERROR: column “element_template_properties” of relation “servoy_columninfo” does not exist

Anyone else having this problem?

I dropped the repository and re-built it
Then things imported fine.

Did the repository get corrupted some how?