Same problem as everyone above.
I tried to create a support ticket with Line6, but their system is designed to re-route you back to these community forums. Brilliant.
So, here's my rant to add to the list:
Mac: Mountain Lion 10.8.2
Software: Logic 9 Express
Interface: Line6 UX1
Mic: MXL Condenser Mic
Yes, I reinstalled Pod Farm (2.55). Yes the monkey updated everything fine.
I launch PF2. I open my Logic E9 and start to record via the Condenser Mic. A few seconds into the recording, huge, distorted crackling begins. Even on playback, the crackling has been recorded. Even tapping the mic with my finger or talking into it creates this loud crackling. I can close Logic 9E and reopen, and begin recording again. I can record a few seconds again, then the crackling. Same if I close and re-launch PF2.
As one poster replied above, it helps to launch PF2 FIRST before Logic, but that only gains you a few more seconds of recording time.
I also tried different buffer sizes, but didn't solve anything.
Bottom line, it's impossible to record like this. I can't relaunch and re-record every few seconds. It's rediculous.
ATTN PEOPLE OF LINE6: I know you said you're "working on it," but how long does it take to update a driver? Surely you have more than one guy and a hot-pocket staring at the code scratching his head on this one. If you think people won't simply sell their Line6 gear and move to something else, you're wrong (I stopped using another brand to use Line6 instead, but I'll jump ship if I'm forced to -- if the gear doesn't work, the gear doesn't work and I can't record. It's real simple like that). Every day this goes unsolved, you lose a customer. Can you afford that in this economy? Everone's going to update to Mountian Lion very very soon and run into this problem (if they haven't already). Don't wait for Apple to fix it (if that's what you're betting on). Get one of your programmers on this 24hrs a day until it's fixed. Pay him/her over-time or hell, we'll all buy him/her a case of hot-pockets if it'll help. Just get it done. That's how business is done.
If for some reason it's truely a technological nightmare, at least tell us exactly what it is upfront. You'd be surprised how resourceful the community is. Any and all ideas should be welcome, and one just might spark the right inspriration to fix this issue. Right guys/gals? Just saying "we're working on it" sounds like someone put a pin in it and then went to lunch. "We're working on it" means nothing, especially since the issue's been known since at least Aug 9th.
signed: a long-time Line6 supporter (a future supporter....... ?)