Creating static list from two small smart lists fails - this needs to be fixed

[Anonymous]

Smart list timeouts are something Marketo should put a very high priority on. 

I tried to run a campaign to create a static list from two smart lists and it timed out after several hours.  when I first ran it, it shut down all other campaigns, so I had to abort it, so an email send campaign could go out.

I restarted it and then I got a failure notice saying:
Why: Smart List is taking too long to calculate.

What to do now?
Some Smart Lists are really complicated. Try to simplify.

It was just: If member of 1 smart list or a 2nd smart list > Create static list

[Anonymous]

What filters are inside Smart List 1 and Smart List 2?

[Anonymous]

I just found out that there were 4 other smart lists referenced as filters within the 2 main smart lists.  I know that nested smart lists never work.