2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66794We construct examples of flabby strict deformation quantizations not preserving K-groups. This answers a question of Rieffel negatively.6 pages, minor changes. To appear in K-theoryQuantum AlgebraOperator AlgebrasFlabby strict deformation quantizations and K-groupstext