Hey there. I actually just dealt with this issue on a batch of fastbud gsc. This is some kind of issue with the seed structure. Mine had a hard time emerging from the seed. It took me a few trys to even get one going and all the other strains I started with them did fine so this isn't something you did wrong. It is either just in the breeding or storage of the seeds before you got them. I have a diary going on mine and she is not growing near as well as she should be. All we can do at this point is care for them and if they don't start growing well in 2 or 3 weeks just scrap them and start something else. That is my plan anyway. Mine is starting to make a little progress so there is hope. It is unfortunate but sometimes issues just happen. The one I grew before was one of my all-time favorite smoke too so it is disappointing. Hope this solves your concerns. Good luck!