Not so much a problem; more an observation.
Some recent street photography shots was seriously under exposed for no apparent reason.
I did a camera re-set (both green buttons) and all was well.
On checking the Meta data in each of the photographs, I found the shutter speeds showed 10/10000; other shuuter speeds showed 10/2000 and 10/5000 instead of the more usual 1/1000 and 1/2000.
Any explanations?
Forbisher