When a deployment is triggered via the PaaS portal, it reports a warning when the target site is returning a non-200 response in the slot. However, when the site is running on multiple instances in a load balanced setup, it does not check all instances. There are scenarios where one or more servers can have issues but the others are fine... and in these scenarios the PaaS portal does its checks against the healthy server and reports back that all is fine.

Can the health checks be updated to call each server directly? Only return success when all instances are healthy.