Light Groups dont save

[sspringer11]

I've just come across what seems to be an issue with Revit 2014; any changes to light groups in the Artificial Lights dialog will not save after pressing "OK". Neither new groups nor dimming values stick, once you press "OK", then come back to the dialog, everything is reset to default. This happens regardless of how you access the artificial lights dialog, or whether you created the light group from the dialog or by selecting fixtures in the model.

Is anyone else having this issue, or could I just be a problem with my install? Or perhaps I'm just not using them correctly (always a possibility :-p)

[harkeychad]

I know when I do this I have to hit render first and then close out after it goes for a minute or so. Then when I come back to that, it still is saved. Try that.