K850i Flash Problem - dark photo

Is anyone else getting dark photo's when they use the flash on the K850i? I'm sitting here taking exactly the same photo over and over and getting different results. It seems th brightness of the flash varies (it's actually a visibly bigger and brighter flash sometimes)…

I don't understand it - surely this is the kind of bug that gets exposed during a testing phase?

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Maybe it will be fixed during a firmware update? My version is:

1200-4400 R1CA029 070922

I assume that last number is a datestame in the form YYMMDD which means the firmware is about 5 weeks old (nearly).

I'll post back if I find anything out, but in the mean time I'd appreciate to hear from other people!