I’m having a really weird problem with search results. My employer has a large index with around 35 million documents, and sometimes after a document is updated it seems to disappear from search results for a little while. When it is missing, it does not appear in searches by either text or document id. After a while, it will spontaneously show up again. Sometimes it shows up by object id first, and then in search a few minutes later. Other times it will show up in search first, and then ID a few minutes later.
Is this an expected behavior? My understanding was that a document would not go missing when updated, and the older version of the document would persist until a new one appears.
If this is not an expected behavior, do you have any advice for troubleshooting?