This is what showed up on my Workbench using Pro 3.0 FMEEngine 2022.0.0.
@BruceHarold has also looked at the ESRIReprojection transformer and found some weird error/warning conditions. He thinks the error is some logic looking for whether epoch is set in the EsriReprojector.
He confirmed that EPSG 9333 is indeed missing in Workbench, in spite of its presence in the transformer
It looks like you have an earlier version of DI for Pro 3.0 as I'm using a final build.
We will create an issue in our backlog for this error.
Thanks.