UE 15.10, Vista-32. Create a couple of key mappings: ctrl-1, ctrl-s, remove existing bindings. Keys work fine. Fine, I say. Close down UE. Start it up again. No mapping. Oh: ctrl-s does nothing now, where the default, pre-mapping, was file save. Uninstall UE, clear out AppData directory containing all UE data, reinstall, same behavior.
Huh?
Huh?