I’m also seeing related issues in the HA log for that same setting like the following:
2023-12-18 11:56:58.871 WARNING (MainThread) [homeassistant.helpers.template] Template variable warning: 'dict object' has no attribute 'rampRateOffToOnRemote' when rendering '{{ value_json.rampRateOffToOnRemote }}'
2023-12-18 11:56:58.994 WARNING (MainThread) [homeassistant.helpers.template] Template variable warning: 'dict object' has no attribute 'rampRateOffToOnRemote' when rendering '{{ value_json.rampRateOffToOnRemote }}'
2023-12-18 11:56:59.002 WARNING (MainThread) [homeassistant.helpers.template] Template variable warning: 'dict object' has no attribute 'rampRateOffToOnRemote' when rendering '{{ value_json.rampRateOffToOnRemote }}'
I finally had to filter them from the log because they repeat many times when anything happens to that group. Something about that setting is being mishandled, but I haven’t been able to figure out what yet.