We have had this issue from the beginning. When adding interfaces through Node Management, the alias ( or description on the interface side ) will NEVER update. We have tried various things to try to find a fix, but only way we are able to get the interface to update properly is to remove and then re-add the interface within System Manager.
I already have case # 125979 open with Solarwinds, but thought I would see if anyone else is having the same issue.
Thanks.