How did you install rtl_433? From your distribution (apt-get …) or from the source code by following the build instructions:
Your command line looks o.k. - so no idea what’s wrong other than having an old version of rtl_433…
I said above, you can use a quite recent feature of rtl_433 for your need.
So, if you have not build from source this might the issue (since the version from the distro is certainly too old).
If this is not the case, you should raise a issue at the rtl_433 repository.
