Trouble saving Apprise settings

[ih8gates]

I'm trying to use Apprise to send MQTT when a new ID occurs. I've set the configuration field
mqtt://USER:[email protected]:1883/birdnet/sightings
Left the title blank and set the body to
{"sci":"$sciname","cmn":"$comname"}

When I send a test notification, everything works as expected. But when I update the settings, both the body and the title field are blank when the page reloads after update. When I check the logs, I see

08:52:20---Traceback (most recent call last):
08:52:20---  File "/usr/lib/python3.9/threading.py", line 954, in _bootstrap_inner
08:52:20---    self.run()
08:52:20---  File "/usr/lib/python3.9/threading.py", line 892, in run
08:52:20---    self._target(*self._args, **self._kwargs)
08:52:20---  File "/usr/local/bin/server.py", line 523, in handle_client
08:52:20---    sendAppriseNotifications(species,
08:52:20---  File "BirdNET-Pi/scripts/utils/notifications.py", line 104, in sendAppriseNotifications
08:52:20---    notify_body = body.replace("$sciname", sciName)\
08:52:20---AttributeError: 'NoneType' object has no attribute 'replace'

Seems like the value isn't coming through to the settings page. Or isn't being saved correctly? I checked the source for the settings frame and I don't see malformed HTML there - like the value is being output to the input field but not displayed correctly.

Probably not related, but I did roll back paho-mqtt to make MQTT work again.

[ih8gates]

Looks like it's an issue with values that are JSON. I'm able to get the fields to save if I use plain text templates without braces and quotes.