Uppercase field ID automatically set to lowercase when exporting the code:
array (
'id' => 'sortno', <= it suppose to be SortNo
'type' => 'text',
'name' => 'No. Track',......
result: it's still possible to insert fields data to database but it can't read the data after inserted (not showing it on each related metabox column). in order to fix this i just change the ID back to case sensitive.
of course it's only matter on custom table usage case.