Not really a hubitat issue, more of a Shelly issue to be honest, but I thought that I would give you guys the heads up.
I live in an old house with no neutral and I've been running with the Shelly 1L and the bypass for a number of months, I've recently had issues with the shelly bypass (I've had to replace 2 as they have burn't out). When they did burn out, they took the Shelly 1L with them.
I'm currently looking for alternatives to the bypass, as the Shelly 1L has been working really well for me.
All the best,