This issue is fixed in the following cumulative updates for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Towork around this issue, you can either increase the amount of memory in the resource poolwhere Columnstore Index build runs or reduce the number of concurrentmemory consuming queries or you can do both.