Unable to run Promptflow in AWS LAmbda due to _multiprocessing.SemLock error

[WillsonAtJHG]

Is there a way we can disable multiprocessing in promptflow?
Looking at the stack trace the error happens when importing PFClient and particularly the tracing utils within it. I have tried setting PF_DISABLE_TRACING and PF_DISABLE_SERIALIZATION but they didn't seem to help. Same flow works fine in my local environment.

[ERROR] OSError: [Errno 38] Function not implemented
Traceback (most recent call last):
File "/var/lang/lib/python3.11/importlib/init.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1204, in _gcd_import
File "", line 1176, in _find_and_load
File "", line 1147, in _find_and_load_unlocked
File "", line 690, in _load_unlocked
File "", line 940, in exec_module
File "", line 241, in _call_with_frames_removed
File "/var/task/lambda_function.py", line 4, in
from promptflow.client import PFClient
File "/var/lang/lib/python3.11/site-packages/promptflow/init.py", line 19, in
from promptflow._sdk._pf_client import PFClient as _PFClient
File "/var/lang/lib/python3.11/site-packages/promptflow/_sdk/_pf_client.py", line 24, in
from .operations import RunOperations
File "/var/lang/lib/python3.11/site-packages/promptflow/_sdk/operations/init.py", line 7, in
from ._flow_operations import FlowOperations
File "/var/lang/lib/python3.11/site-packages/promptflow/_sdk/operations/_flow_operations.py", line 36, in
from promptflow._sdk._orchestrator import TestSubmitter
File "/var/lang/lib/python3.11/site-packages/promptflow/_sdk/_orchestrator/init.py", line 5, in
from .test_submitter import TestSubmitter
File "/var/lang/lib/python3.11/site-packages/promptflow/_sdk/_orchestrator/test_submitter.py", line 15, in
from promptflow._internal import ConnectionManager
File "/var/lang/lib/python3.11/site-packages/promptflow/_internal/init.py", line 52, in
from promptflow._sdk._service.apis.collector import trace_collector
File "/var/lang/lib/python3.11/site-packages/promptflow/_sdk/_service/apis/collector.py", line 17, in
from promptflow._sdk._tracing import _is_azure_ext_installed, process_otlp_trace_request
File "/var/lang/lib/python3.11/site-packages/promptflow/_sdk/_tracing.py", line 61, in
from promptflow._sdk._utilities.tracing_utils import get_workspace_kind, parse_kv_from_pb_attribute, parse_protobuf_span
File "/var/lang/lib/python3.11/site-packages/promptflow/_sdk/_utilities/tracing_utils.py", line 380, in
_telemetry_helper = TraceTelemetryHelper()
File "/var/lang/lib/python3.11/site-packages/promptflow/_sdk/_utilities/tracing_utils.py", line 353, in init
self._lock = multiprocessing.Lock()
File "/var/lang/lib/python3.11/multiprocessing/context.py", line 68, in Lock
return Lock(ctx=self.get_context())
File "/var/lang/lib/python3.11/multiprocessing/synchronize.py", line 169, in init
SemLock.init(self, SEMAPHORE, 1, 1, ctx=ctx)
File "/var/lang/lib/python3.11/multiprocessing/synchronize.py", line 57, in init
sl = self._semlock = _multiprocessing.SemLock(