It does look to me like one engine wasn't firing properly, but that's hard for me to confirm given the stream quality. (I.e. Speculation)
Replying to @DJSnM
Miss Dada 🏳️⚧️ Retweeted Elon Musk
@DJSnM Low thrust alarm. LOX heated from the delay and caused a helium bobble.https://twitter.com/elonmusk/status/704102461766676481 …
Miss Dada 🏳️⚧️ added,
4:46 PM - 28 Feb 2016
0 replies
0 retweets
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