If you have field set as searchable e.g. selection, relational, user and hit the "find" then if the results exceed the configured allowable amount you have usability issues to get this set back to none . Details below: (1) On a transition do a Find against the field and you get "more than 250 matches".
This error indicates that an operation requiring Path Map Client name-based path was given a path that does not match any of the Client name values used on the Path Maps served by the File Server(s) this client knows about. The two most likely scenarios are: Someone executed a vtransfer command on the File Server, but instead of providing the Client name to the archive the location on disk was passed instead.
Make sure that there were no errors during the Transform phase. If none were encountered, some files have most likely been corrupted. Close and re-open the Execute Migration dialog box, and then re-run the migration Transform and Import phases to regenerate the configuration files.