Using runtime 9.0.1, the tool Alfred returns the following error trying to open a Vision file:
"The file system does not support requested operation".
Using runtime 8.1.0 Alfred works correctly.
The error is caused by a known issue that concerns I$IO library and runtime of version 9.0 and 9.0.1. A fix has been developed and released in version 9.1.0. Be sure to upgrade to the new version of runtime.