[Python] teams notification webhook workflow in python script working on Windows, but not Linux

I have a python script that triggers a webhook to create a teams notification with the scripts progress. I'm using pymsteams for the script; which ultimately looks like this:

def notify_teams(message):
if debug_dry_run:
return
try:
myTeamsMessage = pymsteams.connectorcard(
"https://prod-09.westeurope.logic.azure.com:443/workflows/[webhookurl]")
myTeamsMessage.text(message.replace("_", "-"))
myTeamsMessage.send()
except Exception as e:
print('notify_teams failed: {}'.format(str(e)))


When I run the python script from my windows machine (using PyCharm) the webhook works as expected. When I try to run it through the Linux server that I use to automate the script, it fails with the following error:

The execution of template action 'Send_each_adaptive_card' failed: the result of the
evaluation of 'foreach' expression '@triggerOutputs()?['body']?['attachments']'
is of type 'Null'. The result must be a valid array.


The version for Python on each machine is: Linux - Python 3.8.10 Windows - Python 3.9.12 Not sure if this would have an impact or not.

Thanks

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