X-T5 serious problem that doesn't let me sleep

[Dants]

Hi

Last week during a reportage, I shot bursts from about 5 fts with one of my two X-T5s, for a total of about 100 photographs.
I had mounted a Fujinon XF8mm.
Everything seemed to proceed regularly without any sign of problems.
When looking at the sequences in the car I realized that many photos were completely black, that is, as if I had taken with the cap in front, alternating with some perfect ones and others completely white without any detail.
Back in the studio I loaded them onto the Mac and noticed that of a sequence of around 100 photographs, 49 were completely flawed, that is, almost all of them were completely BLACK and some were completely WHITE.
The problem was present both on the photo of the Slot 1 card (RAF) and on the Slot 2 card (JPG) in unison, so much so that I discarded the hypothesis that it could be a problem with the memory card. So, to recap:
the errors on the 49 offending photos are exactly the same, for both cards in RAF and JPG.
After turning the machine off and on again, it started working perfectly again, so much so that in the following days I carried out other jobs, even with gusts, without any problem.
Obviously I am waiting for a response from the support to which I sent the offending sequences.

I would add that if I analyze the EXIFs of the BLACK or WHITE photos, the values and data that appear are completely normal, that is, they report exactly the same information as the photos that came out well, as if nothing had happened.

1) Before each job, I always format the cards in the machine, with the specific function that can be called up from the menu and quick keys of the XT5

2) The XT5 has Firmware version 2.03

3) The Fujinon XF-8mm lens Firmware 1.00

The problem has manifested itself, for now, only once, intermittently, that is, some faulty photos alternated with perfect ones.

In the following days, on the advice of the assistance center, I put on the intervalometer and shot the camera until the card was full for a total of 1600 shots. No problems, everything is fine.

What do you think about it?
Has anyone had this problem?

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[Greybeard]

Its difficult to imagine this could be anything other than a faulty camera.

You seem to have done all the tests to eliminate other causes.

[abmet]

I fortunately haven’t experienced this but I really hope Fujifilm support can determine cause. Hopefully was a fluke issue but would make hard to trust camera until root cause identified. 

[woofeagle]

What shutter setting you have used? It can be a shutter issue or just a problem with sd card.