Check your IDE Live logging to see the event is reaching the hub.
If you don’t see it, it’s possible it’s getting lost especially if there is no repeater in your mesh or your lock is further than 20ft from the nearest repeater. It could be a defective z-wave module but I would try to reboot the hub, exclude, reset and pair the lock again before changing the module.
The FE599 has a firmware bug which shows the incorrect status when using the default handler (this handler fixes that), but no such known issue with the 914.