MicrosoftjordanseligAnother problem is that we see MPSJ validation errors when adding new apps to existing app service plans that already contain an app, when MPSJ isn't even in use.
This is the error: "Minimum subnet size allowed for joining multiple App Service Plans to same subnet is /26, the subnet attempting to be joined is /28."
Just to reiterate. This is when adding a second app alongside an existing app on a single app service plan which is the only app service plan in that subnet. The /28 subnet already exists and is a perfectly valid subnet size for our scenario. We aren't using multi-plan subnet join in this scenario - there is no second app service plan joining the subnet so it seems like the validation is incorrectly being applied.
This was via terraform with azurerm v3.116.0. Sometimes you can retry and it works fine - there are no validation errors from the API. Unfortunately I don't have the ARM API version to hand that the azurerm provider was hitting.
