[UPDATE] Following the publication of this story, a Capcom representative provided GameSpot with the following statements about the status of Ultra Street Fighter IV.

Regarding the user issues:

"We are aware that some users are experiencing problems with the PS4 version of USFIV, which is published and developed by SCEA’s Third Party Production group. SCEA and Capcom are currently looking into the issues that some users may be experiencing and are working to resolve them as quickly as possible. We will continue to provide updates on our progress."