m0useanswered grow question 8 months ago its fine.
Plants will start to stretch once they detect light and will adapt to it accordingly.
Eg, lower amounts of light will make the seed stretch a lot, to much stretch is bad and makes for a weak stalk that can snap pr break under its own weight. and high amounts of light will cause seeds to not stretch and be more stunted.
Check you lights to confirm they are on the setting they need to be for seedlings. Air movement also helps them. no wind extra stretching some wind helps em bulk up and prevent snapping.
If your growing these different from your last 24k plant, this might be why. also some plants grow differently even from the same pack of seeds. sisters not twins.
Good Luck