Task 'CreateMailboxes' (#10) failed with an unhandled exception: Timeout value of 00:05:00 was exceeded by function: Functions.UpdateCreateMailboxStatusActivity

I am unable to provision the public folder path — I keep receiving this error.

Task 'CreateMailboxes' (#10) failed with an unhandled exception: Timeout value of 00:05:00 was exceeded by function: Functions.UpdateCreateMailboxStatusActivity

Has anyone come across this before, and how was it resolved?

I am performing a tenant-to-tenant public folder migration.