az pipelines run fails with Could not queue the build because there were validation errors or warnings

> ### `az feedback` auto-generates most of the information requested below, as of CLI version 2.0.62

**Describe the bug**
az pipelines run fails for all calls made to existing pipelines

**To Reproduce**
run the following
```
az pipelines run --branch refs/heads/--commit-id --name --project --variables var1=val1 var2=val2 --debug --verbose
cli.azure.cli.core.azclierror: Could not queue the build because there were validation errors or warnings.
# Or
az pipelines run --branch refs/heads/--commit-id --id --project --variables var1=val1 var2=val2 --debug --verbose
cli.azure.cli.core.azclierror: Could not queue the build because there were validation errors or warnings.
```
**Expected behavior**
It should call start a pipeline
I can call it through the ADO ui like a charm
```
az --version
azure-cli 2.21.0 *

core 2.21.0 *
telemetry 1.0.6

Extensions:
azure-devops 0.18.0

Python location '/opt/az/bin/python3'
Extensions directory '~/.azure/cliextensions'

Python (Linux) 3.6.10 (default, Mar 19 2021, 05:58:22)
[GCC 9.3.0]

Legal docs and information: aka.ms/AzureCliLegal
```

**Additional context**
I know the org and everything else is fine as I can run everyother `az pipeline` command and get back a valid/expected response

Here is debug output:

```
msrest.universal_http: Evaluate proxies against ENV settings: True
urllib3.connectionpool: https://dev.azure.com:443 "POST /MyOrg/MyProjectId/_apis/build/Builds HTTP/1.1" 400 477
azext_devops.devops_sdk.client: Response content: b'{"$id":"1","customProperties":{"ValidationResults":[{"result":"error","message":"Stage servicePipeline must contain at least one job with no dependencies."}]},"innerException":null,"message":"Could not queue the build because there were validation errors or warnings.","typeName":"Microsoft.TeamFoundation.Build.WebApi.BuildRequestValidationFailedException, Microsoft.TeamFoundation.Build2.WebApi","typeKey":"BuildRequestValidationFailedException","errorCode":0,"eventId":3000}'
msrest.exceptions: Could not queue the build because there were validation errors or warnings.
cli.azext_devops.dev.common.exception_handler: handling vsts service error
cli.azure.cli.core.util: azure.cli.core.util.handle_exception is called with an exception:
cli.azure.cli.core.util: Traceback (most recent call last):
File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 694, in _run_job
result = cmd_copy(params)
File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 331, in __call__
return self.handler(*args, **kwargs)
File "/opt/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 811, in default_command_handler
return op(**command_args)
File "/home/myUser/.azure/cliextensions/azure-devops/azext_devops/dev/pipelines/pipeline.py", line 139, in pipeline_run
queued_build = client.queue_build(build=build, project=project)
File "/home/myUser/.azure/cliextensions/azure-devops/azext_devops/devops_sdk/v5_0/build/build_client.py", line 328, in queue_build
content=content)
File "/home/myUser/.azure/cliextensions/azure-devops/azext_devops/devops_sdk/client.py", line 90, in _send
response = self._send_request(request=request, headers=headers, content=content, media_type=media_type)
File "/home/myUser/.azure/cliextensions/azure-devops/azext_devops/devops_sdk/client.py", line 54, in _send_request
self._handle_error(request, response)
File "/home/myUser/.azure/cliextensions/azure-devops/azext_devops/devops_sdk/client.py", line 233, in _handle_error
raise AzureDevOpsServiceError(wrapped_exception)
azext_devops.devops_sdk.exceptions.AzureDevOpsServiceError: Could not queue the build because there were validation errors or warnings.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/opt/az/lib/python3.6/site-packages/knack/cli.py", line 233, in invoke
cmd_result = self.invocation.execute(args)
File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 660, in execute
raise ex
File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 723, in _run_jobs_serially
results.append(self._run_job(expanded_arg, cmd_copy))
File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 715, in _run_job
return cmd_copy.exception_handler(ex)
File "/home/myUser/.azure/cliextensions/azure-devops/azext_devops/dev/common/exception_handler.py", line 18, in azure_devops_exception_handler
raise CLIError(ex)
knack.util.CLIError: Could not queue the build because there were validation errors or warnings.
```