I haven't encountered any bugs until now.
I've played two games today where I've used Zulrah and both time, the first effect procs and I receive two Zulrah's scales, but the second, 'Gain gold = to hand size' fails to proc.
Last season, I had a dungeon run with Zulrah in my deck and it worked fine then.
Has anyone else experienced this? I've been lucky so far and it hasn't costed me a game but I'm sure this bug could wreck someone's strategy along the line.