Intercompany Elimination is not happening in shared entity

Summary:

There is new requirement from business for OrgByPeriod. we have 100% ownership and not enable any configurable consolidation rule. we have 10 yrs data in the system.

In the requirement Feb period A (subsidiary) having B with 100% subsidary. moving forward Mar period B is moving into F Parent. so in march i created a shared member and ownership for the Mar period we set the shared entity is 100% and under A parent 0% not consolidated.

When i loaded the data and consolidation balance sheet is tied in base level but in the parent of F it not tied out. that amount is showing in eliminations.