I did a fresh hpkg remove miners noinstall. Then I reran the flight sheet to have it reinstall. Everything installed correctly for nanominer and started to run, but after DAG generation, it failed.
Currently running HiveOS latest Stable build (sometime in april).
Note that on Nanominer’s website, apparently this is an issue with earlier than Maxwell cards. But I am using this on a 1080 Ti, which is Pascal (newer than Maxwell).