Maybe Ramesh will see this:

Doing a cross-tree migration, and choosing to create the trustee users on the destination tree.

This is what the file system log shows for failures:

(oh, the SOURCE server is OES2 SP3)

Code:
2012-01-27 11:22:34,197 INFO  - FILESYSTEM:Information:****************Migrating files and/or trustees****************
2012-01-27 11:22:34,197 INFO  - FILESYSTEM:mls:Scanning APPS1:Documentation for rights, trustees and quotas using mls
2012-01-27 11:22:34,199 INFO  - FILESYSTEM:mls:Executing command: /opt/novell/migration/sbin/mls --source-server 10.10.1.11 --source-path "APPS1:Documentation"  --session-file "/var/opt/novell/migration/OESSP1-APPS1/fs/APPS1_Documentation_mls.session" --progress --progress-interval 1  --source-unsecure-ldap  --source-ldap-port 389 
2012-01-27 11:23:33,097 INFO  - FILESYSTEM:mls:Successfully scanned trustees
2012-01-27 11:23:33,098 INFO  - FILESYSTEM:maptrustees:Mapping users and groups from APPS1:Documentation to /media/nss/APPS1/Documentation using maptrustees
2012-01-27 11:23:33,098 INFO  - FILESYSTEM:maptrustees:Executing command: /opt/novell/migration/sbin/maptrustees --source-server 10.10.1.11 --destination-ldap-container "o=abc" --session-file "/var/opt/novell/migration/OESSP1-APPS1/fs/APPS1_Documentation_maptrustees.session" "/var/opt/novell/migration/OESSP1-APPS1/fs/APPS1_Documentation_mls.yaml"  --progress --progress-interval 1  --source-unsecure-ldap  --source-ldap-port 389 
2012-01-27 11:23:39,153 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:23:45,563 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:23:45,569 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:23:50,553 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:23:50,557 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:23:54,063 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:23:56,095 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:24:03,139 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:24:07,827 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:24:07,832 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:24:09,583 ERROR - FILESYSTEM:maptrustees:UTF-8 conversion failed for:   loginAllowedTimeMap: '_decoded_'

2012-01-27 11:24:09,744 INFO  - FILESYSTEM:maptrustees:Successfully mapped trustees
2012-01-27 11:24:09,744 INFO  - FILESYSTEM:migtrustees:Creating users and groups existing on APPS1:Documentation to /media/nss/APPS1/Documentation using migtrustees
2012-01-27 11:24:09,744 INFO  - FILESYSTEM:migtrustees:Executing command: /opt/novell/migration/sbin/migtrustees --destination-server 10.10.1.12 --verbose  --session-file "/var/opt/novell/migration/OESSP1-APPS1/fs/APPS1_Documentation_migtrustees.session" "/var/opt/novell/migration/OESSP1-APPS1/fs/APPS1_Documentation_maptrustees.yaml"  --progress --progress-interval 1  --destination-unsecure-ldap  --destination-ldap-port 389 
2012-01-27 11:24:10,035 FATAL - FILESYSTEM:migtrustees:Fatal: Caught exception: syntax error on line 366, col 14: `  givenName: 'Brenda''
2012-01-27 11:24:10,107 ERROR - FILESYSTEM:migtrustees:migtrustees command failed!
2012-01-27 11:24:10,108 INFO  - FILESYSTEM:Information:****************End****************
2012-01-27 11:34:05,713 ERROR - FILESYSTEM:volmount.rb:Command to mount source: ruby /opt/novell/migration/sbin/volmount.rb  -s 10.10.1.11 -a "cn=admin,o=dec" -c Not Applicable  -f "/var/opt/novell/migration/OESSP1-APPS1/fs/mnt/source" -m  -t OES20

So I'm not sure if it's the logintime stuff that's making it fail (I see a TID with no update) or the odd part about having a problem with a given name