Issue with ASO Custom Allocation with large data set

Hi

I am performing calculations using allocation method on ASO database having size less than 2 GB and dimensionality mentioned below (Table A) with script (see script )

The script should simply copy from Fact A to Fact B. (Want to perform next level calculation once/if this works.) It runs in less than 5 seconds. On totality, fact A is copied to fact B but on lower level data gets copied to any members within dim. (see Result)

I'm aware that calculation as bugs that are not yet resolved by Oracle (14806165 CUSTOM CALCULATION HAS INCORRECT VALUES)

Trying out allocation as suggested on different blogs and in various forums.