*Created by: mhoemmen* Reported by @crdohrm . See, for example: https://github.com/trilinos/Trilinos/blob/b302530f493b042c6db40c8d3654cb7745afebe2/packages/tpetra/core/src/Tpetra_Experimental_BlockCrsMatrix_def.hpp#L1018 I think this happened at the most recent Kokkos promotion.