For what it's worth Samsung Smartthings owners are having what seems to be the same problem, that is that (many) people cannot successfully pair a UK Yale lock fitted with the Z-Wave version 2 module. This means both the Connexis L1 and the Keyless Connected Smart Lock (for night latches).
The symptoms appear identical to those listed here, you hold the lock inches from the Smartthings hub, you put the hub in pairing mode and put the lock in pairing mode and it times out after a few seconds emitting the failed beeps.
I personally have tried a Keyless Connected Smart Lock with three different Z-Wave v2 modules, I have corresponded with a Connexis L1 owner who tried one module and I have been told a Smartthings engineer tried a Keyless Connected Smart Lock with two Z-Wave v2 modules. I know the v1 modules works fine in the same locks.
If Hubitat have created a workaround for this would they be able to provide details sufficient for Samsung to replicate this fix on their hub? Yes I know this is a bit cheeky but one can only ask.