Not sure of the exact approach.
May be you can try loading the datapage2 as well using load-data page method and give same pool Id in both method parameters.
Pool Id = pool Id value 1
Data page= data page 1
Pool is= pool id value1
Data page= data page2
If not, What is the scope of DP2 and how the data getting load on the DP2?
As far I can think off the DP2 itself not able to load his data due to missing value need to populate result on DP2. I think in order to load value on DP2 it needs value on the parameter or something from a source which is not visible in the new thread.
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