Thanks, which version of Revit are you using? I’ve uploaded 2018 to https://geometrygym.wordpress.com/downloads-windows/
It seems you have to replace the dynamo component though if you have a different version of Revit.
It is possible to build the dynamo dll yourself if you have a different version or Dynamo. I’ve opensourced this, https://github.com/jmirtsch/ggRevitDynamoIFC
Let me know if this doesn’t help. You should also test the importer manually in Revit, note there is a license required (you will be prompted). I do provide free access to academic use but rely on revenues from commercial users to sustain full time development and support of these tools.
Cheers,
Jon