Individual ID security issue in 8.4.1

[MarkL]

We upgraded to Cognos 8.4.1 from 8.3 a number of months back. We are having an issue when adding individual IDs as security on folders or capabilities where it won't take the individual ID and only groups. When you select the individual ID and send it over in the window and select OK to set the level of security (read, write, traverse and set policy), it never appears. When sending a group over and selecting OK the group does appear. Has anyone experienced this issue in 8.4.1?

Thanks!!!