It seems this is due to authentication issues (but the error is not propagated correctly)

2021-04-06 11:34:14 provisioningserver.rpc.common: [critical] Unhandled failure dispatching AMP command. This is probably a bug. Please ensure that this error is handled within application code or declared in the signature of the b'DiscoverPodProjects' command. [wintermute:pid=134670:cmd=DiscoverPodProjects:ask=7]
	Traceback (most recent call last):
	  File "/usr/lib/python3.8/asyncio/events.py", line 81, in _run
	    self._context.run(self._callback, *self._args)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/internet/asyncioreactor.py", line 290, in run
	    f(*args, **kwargs)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 501, in errback
	    self._startRunCallbacks(fail)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 568, in _startRunCallbacks
	    self._runCallbacks()
	--- <exception caught here> ---
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 654, in _runCallbacks
	    current.result = callback(current.result, *args, **kw)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/protocols/amp.py", line 1171, in checkKnownErrors
	    key = error.trap(*command.allErrors)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/python/failure.py", line 439, in trap
	    self.raiseException()
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/python/failure.py", line 467, in raiseException
	    raise self.value.with_traceback(self.tb)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/python/threadpool.py", line 250, in inContext
	    result = inContext.theWork()
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/python/threadpool.py", line 266, in <lambda>
	    inContext.theWork = lambda: context.call(ctx, func, *args, **kw)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/python/context.py", line 122, in callWithContext
	    return self.currentContext().callWithContext(ctx, func, *args, **kw)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/twisted/python/context.py", line 85, in callWithContext
	    return func(*args,**kw)
	  File "/snap/maas/12731/lib/python3.8/site-packages/provisioningserver/utils/twisted.py", line 202, in wrapper
	    result = func(*args, **kwargs)
	  File "/snap/maas/12731/lib/python3.8/site-packages/provisioningserver/drivers/pod/lxd.py", line 239, in discover_projects
	    client = self._get_client(pod_id, context)
	  File "/snap/maas/12731/lib/python3.8/site-packages/provisioningserver/drivers/pod/lxd.py", line 760, in _get_client
	    client.authenticate(password)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/pylxd/client.py", line 447, in authenticate
	    self.certificates.create(password, cert)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/pylxd/models/certificate.py", line 62, in create
	    client.api.certificates.post(json=data)
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/pylxd/client.py", line 208, in post
	    self._assert_response(response, allowed_status_codes=(200, 201, 202))
	  File "/snap/maas/12731/usr/lib/python3/dist-packages/pylxd/client.py", line 137, in _assert_response
	    raise exceptions.LXDAPIException(response)
	pylxd.exceptions.LXDAPIException: not authorized