Email addresses are invisible when more than 10 emails are put in the To, Cc and Bcc - Known Error

Email addresses are invisible when more than 10 emails are put in the To, Cc and Bcc Description Unable to view email addresses in the To/Cc/Bcc fields when pasting in 10 or more email address in a Compose Email form

Steps to Reproduce

Navigate to Customer Service > Cases > My Work. Open a case record. Click on Compose Email. Select a template from Quick Messages. Navigate outside the instance to a text document. Copy a list of at least 10+ email addresses, delimited with a semicolon. Paste text into the To, Cc Bcc field. Workaround This problem has been Fixed . If you are able to upgrade, review the Fixed In section to determine the latest version with a permanent fix your instance can be upgraded to.