Unable to deploy machine with static IP address

I have a node which I manually assigned a static IP address. I went to deploy the node but I get a "Error:Failed to allocate the required AUTO IP addresses". My MAAS has no other machines deployed so the address space is fully available. Switching to auto assign works around this.

2020-11-19 03:07:22 maasserver.websockets.protocol: [critical] Error on request (90) machine.action: Failed to allocate the required AUTO IP addresses
 Traceback (most recent call last):
   File "/usr/lib/python3.8/threading.py", line 870, in run
     self._target(*self._args, **self._kwargs)
   File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 825, in worker
     return target()
   File "/usr/lib/python3/dist-packages/twisted/_threads/_threadworker.py", line 46, in work
     task()
   File "/usr/lib/python3/dist-packages/twisted/_threads/_team.py", line 190, in doWork
     task()
 --- <exception caught here> ---
   File "/usr/lib/python3/dist-packages/twisted/python/threadpool.py", line 250, in inContext
     result = inContext.theWork()
   File "/usr/lib/python3/dist-packages/twisted/python/threadpool.py", line 266, in <lambda>
     inContext.theWork = lambda: context.call(ctx, func, *args, **kw)
   File "/usr/lib/python3/dist-packages/twisted/python/context.py", line 122, in callWithContext
     return self.currentContext().callWithContext(ctx, func, *args, **kw)
   File "/usr/lib/python3/dist-packages/twisted/python/context.py", line 85, in callWithContext
     return func(*args,**kw)
   File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 860, in callInContext
     return func(*args, **kwargs)
   File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 192, in wrapper
     result = func(*args, **kwargs)
   File "/usr/lib/python3/dist-packages/maasserver/utils/orm.py", line 737, in call_within_transaction
     return func_outside_txn(*args, **kwargs)
   File "/usr/lib/python3/dist-packages/maasserver/utils/orm.py", line 602, in __exit__
     self.fire()
   File "/usr/lib/python3/dist-packages/provisioningserver/utils/twisted.py", line 192, in wrapper
     result = func(*args, **kwargs)
   File "/usr/lib/python3/dist-packages/maasserver/utils/asynchronous.py", line 207, in fire
     self._fire_in_reactor(hook).wait(LONGTIME)
   File "/usr/lib/python3/dist-packages/crochet/_eventloop.py", line 231, in wait
     result.raiseException()
   File "/usr/lib/python3/dist-packages/twisted/python/failure.py", line 467, in raiseException
     raise self.value.with_traceback(self.tb)
   File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 1416, in _inlineCallbacks
     result = result.throwExceptionIntoGenerator(g)
   File "/usr/lib/python3/dist-packages/twisted/python/failure.py", line 491, in throwExceptionIntoGenerator
     return g.throw(self.type, self.value, self.tb)
   File "/usr/lib/python3/dist-packages/maasserver/models/node.py", line 5546, in claim_auto_ips
     yield self._claim_auto_ips()
   File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 1418, in _inlineCallbacks
     result = g.send(result)
   File "/usr/lib/python3/dist-packages/maasserver/models/node.py", line 4506, in _claim_auto_ips
     raise StaticIPAddressExhaustion(
 maasserver.exceptions.StaticIPAddressExhaustion: Failed to allocate the required AUTO IP addresses