Users are reporting browser time outs when trying to send emails in a chain on HR Cases in Agent workspaceIssue Scenario 1:The browser page freezes when downloading an attachment from within the agent workspace only within the activity streamScenario 2:The browser page freezes when adding email attachments to an email when clicking reply or reply to from within the agent workspace.CauseThe scenario 1 issue is due to a known PRB - PRB1755658 The scenario 2 issue is due to a known PRB - PRB1761801ResolutionThe PRB1755658 is fixed in Washington DC Patch 5, hence upgrade your instance to Washington DC Patch 5 which is available for all customers The PRB1761801 is fixed in Washington DC Patch 5 Hot Fix 2, Washington DC Patch 7 and Xanadu, but not available in Washington DC Patch 6.