Calculation Manager Rules Validation stuck

Hello all,

We have an environment with EPM 11.1.2.3.500 installed

Components- HSS, Essbase, HFM, EPMA, CALC, Planning, FDM

we migrated an HFM application and from another 123.500 environment (STAGE BOX) to the above mentioned 123.500 environment (NEW DEV) and then we migrated business rules from an EPM 11.1.1.3 environment to 123.500 Environment (New DEV)

when we try to validate the calculation manager rule by right clicking over any rule, the validation gets stuck and never completes.

When we try to validate the rule folder (By right clicking the folder which contains the above mentioned rule) then we get an error as below:

though the member shown in above error are present in the HFM application Dimension HFNew_Account.