We just upgraded from 7.6.3 to 7.7.2 and discovered a problem within the PIM related to the inRiver integration. We get the following javascript error and it is causing issues when editing products:
Error: Dynamic Component not found: InriverTextReadOnly
It does strike me as odd that we have not had this problem in 7.6.3 … while obsolete, it seemed to work before installing 7.7.2 (the AngularJs components that is)