My initial backup was for 4.1 7987. I upgraded to 8892, then to 5.0, had an errors I mentioned earlier, so I reverted back to 4.1.7987. Then changed current Distributed version license key to my old Standard edition key. Ensured that KNM changed to Standard version after this change. Then I've tried to upgrade to 4.1.8892 build again. And after I did that, I was not able to start KNM because of expired key.
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