Error: 'Execution Timeout Expired' when importing tasks with secondary resource groups

Data import error:

Orchestrate Data Flow import has failed. The detailed information is as follows:

Execution Timeout Expired. The timeout period elapsed prior to completion of the operation or the server is not responding.

Import Command:
​EXEC [wf].[pr_Merge_TaskSecondaryResourceGroups]

Please upgrade to Orchestrate version 7.77 hotfix 20 or above. If the issue continues to occur, please raise a new case online and reference the title of this article.