8 week old bearded dragon egg sinking in? it's not hatching

[Boba29]

I have one eight week old beardie egg and it had veins up until yesterday. I have noticed when a beardie egg dies the veins aren't there anymore(I know this makes no sense but that's just what I've noticed) The egg has a little fetus at the top and I don't think it's big enough to hatch (well I actually have no idea because I've never gotten a baby before) but now it's sinking in and i added water to the bedding yesterday before it started sinking in. Btw now the egg is just kind of yellow orange ish inside with some random red lines(they aren't veins) with the pink fetus at the top. So any idea what's going on? Temp is 84 and humidity is about the same, it has a lid with holes, it's in vermiculite,and before this happened the incubator went up to 86 for a day-ish. Could that have killed the baby? Are they really that fragile? And I haven't been using a high wattage flashlight to candle the egg, and is this issue beyond repair? My eggs always die