Some items in the Migration table are not being transferred (4377917)

Some of the following situations might occur when trying to import a GPO along with migration tables:

1. After importing a GPO, some entries in the GPO that use the values from the migration table are not transferred or transformed (source type is Free text, UNC and Universal Group).
2. After importing or copying a GPO, the Security Filtering option does not work even if Migrate Security Filtering checkbox is selected.

Attempt to run the import process directly with GPMC and see if the results are consistent with those obtained using the GPOADmin console.  If the behavior is the same, it is most likely that the migration table does not have the required configuration to apply new values in a different domain, or the GPO does not contain parameters which can be modified with a migration table file.