Anybody using UAD-2 plugs on an Input channel?

It simply disables the plugin(s) it deems to be the culprit(s). Not very scientific or convincing in my humble option.

Why can’t it just set the (poor) latency and let you get on with it. Or just record and let you deal with the latency later? Nope it hits some arbitrary limit and craps out - not great - nor predictable.