Audio stuttering when editing captions

This week I encountered the same issue as Gordon, and likewise, eventually realized it was opening up the file to caption it before the audio had loaded/drawn completely.  And once it happens, you can't get rid of the stuttering until you close and reopen the file. In more extreme cases, only the very first part of the audio shows up. It's as if the audio is loaded into working into RAM incorrectly, and can't fix itself until the file is closed and it's dropped back out of RAM.

Occasionally, I encounter this same stuttering when I proof a compiled file from my drive; but the problem goes away if I replay the slide.  No client has encountered this yet that I know of.

This is with narrated presentations where the audio is in 30 second to 1 minute lengths, brought in as 96kbps mp3's.

I'm about to switch over to an SSD Drive (from an old hard drive), so if it's an issue of the audio file not be able to be read quickly enough off the hard drive, maybe that'll make the problem go away.

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I'll just add that I also had a stuttering problem with a single slide, both in Preview and when Output, which was a 96kps 44khz  32 bit float mp3.  I changed it to 16 bit and reimported it and it was OK after that.