Terraform Cloud: Timeout while waiting for plugin to start

Hi.

Lately one of our workspaces on TF Cloud has been intermittently failing with an error: “timeout while waiting for plugin to start”.

terraform apply

Waiting for the plan to start...

Terraform v1.0.0
on linux_amd64
Configuring remote state backend...
Initializing Terraform configuration...

│ Error: timeout while waiting for plugin to start
│
│

We have been using the workspace for almost a year without any issues, but for some reason it started failing. What could the reason be?

Things I’ve tried:

  • ran many targeted plans to try to identify any broken resources. All worked fine, however, when running terraform apply the above error shows up.
  • Ihave also downloaded the state file and ran plan/apply locally. All worked too.