Still chasing down this single test bug. But in the mean time @eynhaender completed the NuGet packaging of boost-1.91.0 for vc145 (vs2022), and I was then able to complete manual setup of libbitcoin-system vs2026 builds using that and my previously published secp256k1-vc145. Clean builds and all tests passing, and that covers all dependencies for bs and bx. Over to @pmienk now to add to libbitcoin-build generation.