I've got a couple of packs of that batch, and just had a brew stall at 1.020.
It did the usual lag thing, then fired up on day 3, took it from 1.053 to 1.020 in a few days then stopped.
At a steady 19 degrees.
I've used BRY-97 before with good results, always the lag, but never a stall.
I've...