I think that the 'backwards compatibility' issue has been resurrected.
In the flow below, I have an existing v2.9.1 simpletime
flow, and have then updated simpletime
to the 'tickboxes' branch, and restarted node-RED.
You'll notice that the debug shows no data, yet the now updated node shows all of the options ticked.
Even 'deselecting' and then 'selecting all' does not prompt a deploy request, or change the blank output msg.
Adding a fresh simpletime
node from the sidebar, does however work as expected.