HFSS v9.1 REPORT ERROR
I also met an issue with v9.1.
The fast sweep can't work on my computer.
I'll obliged to 'Interpolate' and save fields with the 'discrete' option...
Moreover, as for me, the simulator is still quite instable.
The function "duplicate" is especially 'windows'-able and bugs without explanation.
sorry, about your own issue, i can't help specifficaly
use the Ansoft web site : i'm sure they will answer.
Anyway, Do you import your object from hfss v8.5 ?
If yes, import the whole project with .cls file in hfss v9 ?
when you import the project, care with object names (no "-" are allowed for example)
littlindian