Corrupt waveforms in FCPX

I started getting these waveforms that would only show partially. The most common problem is that the waveforms cut off diagonally. This happens with synchronized clips and multicam clips.

I've also noticed that audio playback on multicam clips in the timeline can be sporadic. If I click on a clip, sometimes there is no audio, but if I click on it a 2nd or 3rd time the audio plays. Compressed videos all play correctly.

I've searched for a solution to this issue but haven't been able find any answers. I posted a screen grab of the waveform below. Anybody have any thoughts?

If you relaunch FCP X, does that help?

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T. Payton
OneCreative, Albuquerque

I've had the same issue with Audio suddenly not playing on the timeline for no reason, with Multicam clips.. Hitting Cmd+2 brings the Audio back immediately (even though the Timeline window was still the active window). Strange but that's what works for me.

If you're up for it, I would try deleting render files next.

Use the File menu on both the Project and Event.

I would also "step in" to the synchronized clip and see if there's errant keyframes (double click).

Jeremy

I realize this is an older thread, but my internet searches have come up mostly empty. So, I add here for others who may be still searching.

The original waveform pic in this thread matches my problem and what I've found, at least in my case, is that the problem appears related to using any of the EQ Effects except for the Logic effects.

For example, I applied the AUParametricEQ from the Mac OS X effects and it would corrupt the waveform view in the Timeline. In fact, simply turning these on and off in the Inspector would create or fix the problem.

In my experience thus far, I've only found the Logic effects as reliable in this regard. I've also had to abandon the Custom EQ under Audio Enhancements in the Inspector, not for this reason particularly, but for similar "bugginess".

For reference, I'm running 10.0.5.