Test worked well and i got UE OE NE images.
and AV also worked fi9. i ll upload log file too.
O.K.
Can you try this:
1. Switch the camera to P (Program) mode
2. Set the camera to continuous drive mod
3. In "Enhanced photo operations" set AV override to 8.50 or something similar
4. In "Bracketing in continuous mode" set AV bracketing to 1EV and set Bracketing type to +
Exit the ALT mode, press the shutter button and hold it down until the camera shoots 4 images.
It is important that the camera is on a wide angle, so do not use the zoom.
See if there are differences in the brightness between the images.