LCD Backlight Issue

Frustrating LCD issue.

I am using this LCD

Backlight lights up at power on but no backlight later.

All the graphics display properly.

The pinout on LCD board does not match the pinout on its Data Sheet. Real confused here. Any help is appreciated.

Thanks in advance.

Looks like a bad LCD. Installed a different LCD and it works now. Good thing mouser sent me a replacement!