June 27, 2017 10AM ET: We are investigating a performance issue relating to the eRequest inbox tab relating to last night's release. Users may see delays of around 5s loading the page. We will update this post with more information and an ETA for a fix shortly.
Update 12:30pm: we found two independent sources of slowness (unnecessarily queries for some hidden inbox folders plus an inefficient database query path) that we will fix tonight in a patch. The system will be offline for approximately 5-10 minutes tonight at 9:30pm ET while we add the new indexes.