removing a property from a node type with "in flight" requests

Summary:

Recently, we removed a handful of properties from a node type in a viewpoint. This viewpoint had active/inflight requests. The in flight requests then started to produce validation errors indicating that the missing properties were not edditable and/or were no longer available for the request. The only way I was able to resolve is to download the request and upload the request into a new request. It no longer produced a validation error.

What should I be considering when properties are removed from Node Types that currently have In Flight requests? Was there a different way to resolve this issue?