In case you guys see any of these in the field, sold them, are using them personally or for clients, you may want to check if you have a recalled APC powerstrip. You can file a claim with APC and they'll send you a replacement powerstrip free of charge if your strip qualifies. They need a photo of the serial number of the affected unit. You can fill out multiple claims on one form.

https://recall.apc.com/en
https://www.cpsc.gov/en/Recalls/2014/Schneider-Electric-Recalls-APC-Surge-Protectors/
https://www.cnbc.com/id/101096328