Dear Tom,
I took a look at you case and was able to run it without any issues (I increased the domain dimensions a bit, they were too small).
Here is a snippet of the results, however they are not fully converged yet.
Data conversion failed from Number to Vector (which, I have no idea how to fix – I didn’t change anything from the original example file in regard to the inputs I don’t believe)
You might have been probing the age of air (a scalar, not a vector, see the field input) which was the default in the template. I will change that for the next release.
See if this works for you:
01_0_outdoor_airflow_v3_SEND.gh (48.6 KB)
Best,
Patrick