When user clicks on link to incident on email, after login it is redirecting to nav page instead of portalIssue When receiving an email about a ticket progress from instance and clicking on the ticket link, the user will be requested to log into the instance portal if it was not opened for a while before. During login procedure the ticket link gets lost and the 'homepage'(nav page) is loaded instead which is pretty cumbersome!! When clicking the same link from the mail again afterwards the ticket page opens right away.ReleaseNot release specificCauseThe issue is due to the custom fonts used in css included in "serviceport" portal theme which has /sys_attachment.do calls and it is platform URL.This can be seen in HAR logs. In HAR logs if you find /sys_attachment.do calls this is the cause of the issue, as it is plat form URL it is redirecting to Nav page instead of portal page.When you use custom fonts which are stored in sys_attachment table it will lead to this issueResolutionConvert your custom font file attachment into base64 format.Add the base64 format in the CSS include page of that portal themeYou can use this site to convert font files to base64 format. - https://www.giftofspeed.com/base64-encoder/.