Yes I've made a point of learning never to touch the configure button after I've set up the parameters manually, so they never change themselves.
I was originally using Erics driver but not the modified one in HPM. The issue I always had with both that driver and the Hubitat one, was that the switching parameter would not store. I'd set it up for momentary, but would find after a couple of operations that the light would stay on. It could only be turned off by pressing and holding in the retractive switch (so it was open circuit switch, lights on and closed circuit switch, lights off). When interrogating the parameters using the Basic Z Wave Tool I found that parameter 20 was changing to 1 (toggle) when I had it set to 0 (momentary). I've now just downloaded the driver you mention so will set one up again using that driver.
I'm struggling to see the need for the bypass. I understand it can prevent flickering and stop any residual glow from the LEDs when off with low loads. I've only an issue with the latter on my garage lights (a pair of LED bulkhead fittings). I fitted one in there to cure that. The rest of them have been fine - all are 2 wire as there is no neutral at the switch. Some rooms have the bypass and some don't but I tried with/without and didn't see a discernible difference.