LB | Partner / Broker Company Mapping | Single Partner - Multiple companies scenario doesn't work as expected

Environment: LB
Company: ILG for hspl
Login: Partner

Steps:

1. Select any Partner > Select All companies > Save
2. Employee Login > Check for companies > Companies appearing as expected
Now, With SA login again

Search and Select Step 1 Partner > Show assigned companies > De-select few 2 companies > Save

Ideally, except two companies other should be assigned to Partner of Step 1

But when we logged in only 8 companies in list of companies are assigned to partner

Hrishikesh Deshpande Rakesh Roy