Jackfruit seedlings help

Hello! I am asking all specialists here to aid me with my jackfruit sprouts, that for some reason dried on the tip after I received them.

1. Plants are getting western window of eastern europe light + 6500k 3500lm lightbulb 8-10h a day
2. Watering is 50ml per 0.5l pot, before I overwatered it as I always struggle with that so now it's gotten a light watering.
3. Soil mix is citrus mix+perlite+coconut coir+coconut chips+ little bit of fine grain sand
4. Temperature is in around 18c at night and 24c during the day
5. Humidity is in 40-70% range with humidifier running nearby
6. It's also getting air movement 8x a day for 5min from small ventilation setup

For more context I received the sprouts this week, they were looking fresh but a little bit pale which is understandable, considering quite a long journey, but since i planted them the tip dried, the stem is around 5cm long and the root is around 4cm long.

Thanks for all the help in advance ! 🙂