/C#/C# core linq savechanges invalid column name error while adding but not while updating

C# core linq savechanges invalid column name error while adding but not while updating

Just to be clear on this answer, because it was most accurate to my situation 
(but I didnt know it until after I figured my problem out). 
  If you have some error related to OtherTable_ID when you are
  retrieving Table, go to your OtherTable model and make sure 
  you don't have an ICollection<Table> in there. Without a relationship 
  defined, the framework will auto-assume that you must have a
  FK to OtherTable and create these extra properties in the generated SQL.

Source: stackoverflow.com

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