Error fetching virtual switch data: could not find virtual switch

Terraform v0.12.16
Vcenter version 6.7
I am trying to create infrastructure using terraform for vsphere which contains more than 30 virtual switches, terraform plan is successfull, deployment works successfully but frequently it times out while creating the vswitch saying the above error. Syntactically there is no issue seen. Is this a bandwidth issue, or terraform performance issue. Is there any requirement before running the setup.

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