Overlapping Homepage Panels in Client Area
Symptom
After updating to WHMCS 8.5.0, client accounts with four or more services may see overlapping panels in the Client Area.
Cause
A deficiency in the CSS and JavaScript that renders the panel.
Solution
Apply the 8.5.1 Maintenance Release via Utilities > Update WHMCS.
Hotfix
A hotfix for WHMCS 8.5.0 corrects the deficiency and improves the display of the panel:
https://whmcs.community/files/file/177-core-17762-improve-display-of-client-area-homepage-panel/