How to maintain the last value of an entity when become unknown

[Sir_Goodenough ((SG) WhatAreWeFixing.Today)]

Hi Claudio1L,

Not long ago I heard this question, and I believe there was a solution.

Please search for it. I am not able to at this moment.

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Sometimes searching for what you want to find here in the Community Forum can be frustrating. The Forums base software (Discourse) has a search tool that is somewhat effective, but it relies on only the answers provided by other users in the app to answer your question. It does do a good job of popping up similar topics when you are starting a new topic however. (So please pay close attention to the side panel when you are adding a new topic) If you use a search engine like DuckDuckGo or Googl…