Hi,
I experienced a bug and I think it's related to this topic:
'Checkbox default status=selected...bug?'
It occurs when I create a checkbox group with more than 10 options USING THE CUSTOM FIELD OPTION under post fields.
I make the group mandatory so you have to select at least one option.
When I do this and select the first couple of checkboxes (1 to 10), everything is fine.
When I select boxes from 11 and up, the checked status is lost upon submitting.
When I check only boxes above 11 and up, I do not get passed the mandatory validation because the checked status is lost.
It does not occur when I just create a regular checkbox group with the standard fields.
Something to pay attention to I think, it's really affecting my setup. Now I have to find some other way to get these selections linked to my post...