Buon giorno weed doctors, please help understand the issue, maybe smb has seen this before. I lost two seeds of the same cultivar to the same symptoms...TY

Probably weak stock or old seed.

The image appears to show a close-up of a cannabis seedling with a bent stem (pop neck) and a white spot at the base of one of the cotyledons. The seedling also seems to have difficulty shedding its seed coat (membrane). Questions & Answers: 1. What is happening? Based on the visual evidence, the cannabis seedling is exhibiting symptoms that could be indicative of several issues: Damping-off: This is a fungal disease that can cause stem rot and death in young seedlings. The bent stem and white spot are suggestive of damping-off. Nutrient Deficiency: While less likely at the seedling stage, nutrient deficiencies can sometimes cause abnormal growth and discoloration. Genetic Predisposition: In some cases, the bent stem and difficulty shedding the seed coat could be due to genetic factors within the specific cultivar. 2. Two seeds, same cultivar, 1 week difference, both pop neck bended with white woody spot at the base of one of the cotyledons. Doesn't spray the leaves, the membrane wasn't getting off w/o help. And I know it's not substrate - 2 other breeders germinated 100% and look healthy. TY The information provided in the text further supports the possibility of damping-off: Two seeds, same cultivar: Both seedlings from the same cultivar exhibit similar symptoms, suggesting a common cause rather than a genetic issue specific to one plant. 1 week difference: The appearance of symptoms in both seedlings with a week's difference suggests a gradual infection or environmental factor. Doesn't spray the leaves: This indicates that the issue is not related to foliar diseases or pests. Membrane wasn't getting off w/o help: Difficulty shedding the seed coat can be a symptom of stress, which could be caused by damping-off. Not substrate: Ruling out the substrate as the source suggests that the issue might be airborne or related to other environmental factors. 2 other breeders germinated 100% and look healthy: This comparison suggests that the issue is not widespread and might be specific to the affected seedlings. Recommendations: Given the strong possibility of damping-off, here are some recommendations: Isolate the Affected Seedlings: Separate the affected seedlings from healthy ones to prevent the spread of the disease. Improve Air Circulation: Ensure good air circulation around the seedlings to reduce humidity and discourage fungal growth. Consider a Fungicide Treatment: If damping-off is confirmed, a fungicide treatment might be necessary. Consult with a local gardening expert or horticulturalist for appropriate fungicide recommendations. Monitor Other Seedlings: Keep a close eye on the remaining seedlings for any signs of similar symptoms. Additional Information: Seed Source: Information about the seed source and germination method could be helpful in understanding the issue. Environmental Conditions: Details about the environmental conditions where the seedlings are germinating (temperature, humidity, light) can also be valuable. I hope this analysis and recommendations are helpful.