Bus Pirate V4 not showing 1-Wire captured waveform

[witkop]

I have been using a Bus Pirate V3 PCB with Logic Sniffer to capture 1-Wire traffic. This has worked well, but was a bit limited by the storage capacity. I decided to upgrade to a V4 PCB, and now I find that Logic Sniffer, although it triggers, fails to display/capture the 1-Wire signal!

Can you suggest if this is might be a Logic Sniffer issue or a Bus Pirate V4 issue?

PS. Love the program.