As K.C. Lee commented:
"Looks like you are mounting LCD directly instead of using pre-mounted modules. Make sure that your PCB thickness is exactly 0.040" (1mm) as that's what those metal clips are specifically designed for. I don't like the way that the PCB modules vendors that ended up twisting the metal clips because they screwed up using 0.047" (1.2mm) PCB that are too thick for the clips.
If you are printing the case, make the LCD window a bit narrower (by a few mm on left/right side) to block off the bright spots from the backlight."
I really don't know why I designed and ordered this board. I should start selling / giving away boards and projects, make room for new stuff!