It seems your DB has gone bonkers..
Just to be clear, the image you posted in your second post, is that values saved to a term or post?
If it’s for a term there’s some issues as it should look something like tax_termid_fieldname
.
I assume you don’t have any fields with the same field names? That’d mess things up for sure.
What’s interesting about your image is that both the _* value and the regular one contains a string. The _* should have a value of the field key as shown in my image.
