IBM Sametime 9.0.1 FP1 release is available. All customers are recommended to upgrade to this release. Update IBM Sametime V9.0 and V9.0.1 servers to Feature Pack 1 by downloading packages provided here in Fix Central and installing with the Update option. You can also use these 9.0.1 FP1 builds for a fresh install of servers and clients.
It resolves a number of issues. Form more details: IBM Sametime 9.0.1 FP1 release - June 2017
Read the documentation on how to upgrade to 9.0.1 FP1 here: IBM Sametime V9.0.1 FP1 documentation
Download Sametime 9.0.1 FP1 package from Fix Central: IBM Sametime 9.0.1. FP1