Unity package installation failure

Using Unity 6000.046f1, installing Common Assets, HDRP fails with checksum errors:

[Package Manager Window] Error adding package: org.visualpinball.engine.unity.hdrp@0.0.1-preview.206.
Unable to add package [org.visualpinball.engine.unity.hdrp@0.0.1-preview.206]:
One or more dependencies could not be added to the local file system:
org.visualpinball.unity.assetlibrary: sha512-Jiqm3PFZVL99WAXJEMfBNeImkDViQC+ZL9NdbwLH1CrWcCdOetgqD55M92Imvu1HJlzVCOT7i8+Z+ILm2OpS2Q== integrity checksum failed when using sha512: wanted sha512-Jiqm3PFZVL99WAXJEMfBNeImkDViQC+ZL9NdbwLH1CrWcCdOetgqD55M92Imvu1HJlzVCOT7i8+Z+ILm2OpS2Q== but got sha512-RHUKPEoWfDwcBh+rR0C/JzK2MfA7sw7oto+3dByIFjfAWxsC5HF1ZKhfm3r0+sRS+4RqhjIWWNOtkP4KN4AJSg==. (1039116340 bytes)
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()

[Package Manager Window] Error adding package: org.visualpinball.unity.assetlibrary@0.0.1-preview.59.
sha512-Jiqm3PFZVL99WAXJEMfBNeImkDViQC+ZL9NdbwLH1CrWcCdOetgqD55M92Imvu1HJlzVCOT7i8+Z+ILm2OpS2Q== integrity checksum failed when using sha512: wanted sha512-Jiqm3PFZVL99WAXJEMfBNeImkDViQC+ZL9NdbwLH1CrWcCdOetgqD55M92Imvu1HJlzVCOT7i8+Z+ILm2OpS2Q== but got sha512-RHUKPEoWfDwcBh+rR0C/JzK2MfA7sw7oto+3dByIFjfAWxsC5HF1ZKhfm3r0+sRS+4RqhjIWWNOtkP4KN4AJSg==. (1039116340 bytes)
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()