That to me looks infertile. We had a 7mth old drop 2 eggs they looked similar. (We know they were infertile as no male has been near her due to the age)
My female pilb is 2 and a half and mated four weeks ago and again two weeks ago. She gets calcium coated crickets and woodies 8/10 feeds.
She dug her burrow yesterday and I found two of these squashed looking eggs this morning.
This is her second clutch this season an ever, her first went mouldy the first week of incubation.