We have recently migrated multiple servers from Plesk 9.5.4 to new servers running Plesk 10.4.4. The PHP safe_mode settings for the migrated domains were not transfered to the new servers, so we had to set PHP safe_mode for the domains again on the new servers. This sounds like a bug in the Plesk Migration Manager.
The latest migration we did was from a server running Plesk 9.5.4 (latest current micro update) on CentOS 4 to a server running Plesk 10.4.4 MU#20 on CentOS 6. We have also seen this problem when migrating from servers running Plesk 9.5.4 on CentOS 5.
The latest migration we did was from a server running Plesk 9.5.4 (latest current micro update) on CentOS 4 to a server running Plesk 10.4.4 MU#20 on CentOS 6. We have also seen this problem when migrating from servers running Plesk 9.5.4 on CentOS 5.