# Selected for slot leader but failed to mint new block

**URL:** <https://forum.cardano.org/t/selected-for-slot-leader-but-failed-to-mint-new-block/66051>\
**Category:** Operate a Stake Pool\
**Created:** [1 July 2021 11:58 UTC](https://forum.cardano.org/t/selected-for-slot-leader-but-failed-to-mint-new-block/66051 "2021-07-01T11:58:14Z")\
**Posts on this page:** 1\
**Showing post:** 25

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**Author:** ![Chris.AXN](https://avatars.discourse-cdn.com/v4/letter/c/13edae/32.png) [@Chris.AXN](https://forum.cardano.org/u/Chris.AXN)\
**Post date:** [5 July 2021 17:56 UTC](https://forum.cardano.org/t/selected-for-slot-leader-but-failed-to-mint-new-block/66051/25 "2021-07-05T17:56:18Z")

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Yes! Thank you so much for your help.  
Rotated the keys again and copied kes.vkey plus op.cert over and that seemed to do it. Also noticed this morning one of my relay nodes time was out of sync. So that could also have fixed the issue

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