Hi Ron,

Thanks for the advice. I have now resolved the problem.

First - agree it is highly odd that we have two measure groups looking at the same fact table....

Yes, they do. They represent slightly different measures, but use data from the same fact/dim tables in the DWH.

Do you think they could be conflicting with each other?

Interestingly, sdome analysis of the logs suggests that the extra time is being eaten up during the "Process Indexes" phase.

Each measure group is partitioned by week, so index processing was...