Barylestis scutatus egg sack

[Tarantula Tom]

So i woke up this morning to find my Baylestis scutatus (cameroon crab spider) has attempted to lay an egg sack on the side of the glass in her enclosure, however it seems the eggs have simply fallen to the floor. (she was gravid when i bought her).

I’m guessing the eggs are no good, but i was wondering is this a common occurrence with arboreal spiders? How do they usually lay egg sacs without the eggs just falling to the floor like they did here?