Pretty sure the sample size is hundreds or thousands. SanDisk would not bother with a firmware “fix” for something that only affected 2 drives. I had a SanDisk I bought recently have this exact same issue and when I went searching for the problem it was reported in a lot of places.
Data loss is a reason not to purchase if it happens more often than with competing products, and that may be the case with these.
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Pretty sure the sample size is hundreds or thousands. SanDisk would not bother with a firmware “fix” for something that only affected 2 drives. I had a SanDisk I bought recently have this exact same issue and when I went searching for the problem it was reported in a lot of places.