It seems that custom fields - like nxs_snap_sh_FB0_1390663788 - are being added by snap.
When I write a new post and click on the custom field dropdown menu, I get 18 of those now and growing.
And the custom fields I had that should appear below these (the dropdown menu is in alphabetical order) don't. It just ends with the last nxs_snap_FB0_numbers entry.
Can you tell me what is going on here?