This is likely the source of your problem...when migrating from ST or other systems, you want to build you mesh/repeaters from the HE hub outwards first, and then add things that rely on them like locks (which really want nearby beaming repeaters), at the end of the process. Even if the hub is nearby/direct site of the lock this is a best-practice. When I moved from ST I moved my lock over late in the conversion process. It's a Z-Wave (non-plus) Schlage and I get immediate reporting of lock/unlock events at the lock.
I would put the lock back on ST and then move over your other "supporting actors" (Z-Wave switches, plugs, etc., that repeat) and then bring the lock back over again. You can also leave the lock on HE and after moving switches/plugs over, then reset and re-pair the lock.
See this post for more context/details...
