RPG, Excel, POI36 - after putting rows into an existing worksheet, the cells are protected.

I'm using rpg to loop thru a small file and write rows/cells into an existing worksheet.
Before running the rpg program, the worksheet cells are not protected, after running the rpg program and populating the rows, the cells are protected. If you go to the row right after the inserted rows, the cells are not protected so it seems any cell that gets written is having cell protection turned on?

Any insight would be greatly appreciated.

My program pretty much follows the UPDDEMO program in the POI36 library provided by Scott Klement.

Template of how my cells get populated below.

Tfah,
John B
//-
// Load an existing spreadsheet into memory
//-
book = ss_open(gIfsDir + '/' + gFilename);
if (book = *null);
Complain('Unable to open workbook!');
endif;

//-
// Set the worksheet to update
//-
sheet = ss_getSheet(book: gSheetname);
if (sheet = *null);
Complain('No Sheet1 sheet in workbook!');
endif;

//-
// Get the row
//-
row = SSSheet_getRow(sheet: gRow);
if (row = *null);
row = SSSheet_createRow(sheet: gRow);
endif;
<snip>

//-
// Supplier's name 1
//-
gColumn += 1;
cell = SSRow_GetCell(row: gColumn);
if (cell = *null);
cell = SSRow_createCell(row: gColumn);
endif;
// Update the cell
SSCell_setCellType(cell: CELL_TYPE_STRING);
TempStr = new_String(spDESC);
SSCell_setCellValueStr(cell: TempStr);

ss_save(book: gIfsDir + '/' + gFilename);