Movie stabilisation is done by software shifting the framing over the sensor field, so it cannot be relevant to the issue.
Care to post a link on your input regarding movie SSS function on this particular camera model. Thanks.
Not necessary to post a link. It's a fact that the A77II, like other recent SLT models, uses electronic stabilization during video. That does not involve any of the
physical sensor movement that happens during still shot stabilization and pre-shot viewfinder stabilization.
Thanks and granted you are correct, one can't just find that info from the manual or the guide

. Ian however mentioned relevancy. I didn't start the movie SSS to being off info. Several users in the original post mentioned it and based from my experience on two copies, turning it off seems to minimize occurrences. I don't know yet the actual connections but turning off further some function like the SSS on shutter further reduced my encounter with the SSS error.
There might not be functional connections between the two functions (movie SSS and still SSS), but the circuitries and controllers for both functions could be near each other and if there is not enough isolation, cross talks can't be discounted. It may not be a design issue but lots of things happens in production. A cold solder actually might give some sub par performance on some functions. Also we can't discount some algorithm/programming issues - maybe not true to all copies but could happen to others.
There are so many undesirable things that could happen that we don't know. Unless I am presented with facts, data and results attesting to the validity of the initial statement, I tend to believe that there are other possibilities, directly connected or not. As my experience being an engineer (in electronic chip manufacturing), there is always that expectation that things built per spec, per known eng'g principles, per tested and qualified materials, per industry procedures and other confirmed and tried characteristics would always results in good products all of the time. Unfortunately (at least in my industry) that it is not always the case.
As of now, I stand with my observation that having the movie/EVF SSS off and the SSS on shutter off reduced my encounter with SSS error so far in my 3rd copy. Would this be an absolute observation? No, as my usage progresses, I will surely do some confirmations - turning them ON again one by one and see what happens.
With no new reported SSS error, it could be said for now that maybe the error could be a quality issue on some batches and I hope it was.
Sorry if this is a rather lengthy input and for sure not directed to you but more as a response to the usual generalization that if one has some knowledge, one thinks it is the last word and applicable to all.
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Cheers,
gil - San Jose, CA
Cheap Lens, JPG and 100% Handholding Provocateur
Like happiness, photography is often better created than pursued.