I have 3 different strains all throwing off 1,2,3,4 and 5 bladed leaves. Well they were throwing off 1 & 2 bladed leaves a couple weeks ago , now they are getting back on track and throwing out 3 and 5 bladed leaves.
Before I put them out in April they had 5 blades.
My guess is they are not aclimated to being outdoors and the light schedule the sun is on.
But like I said they are gettin.g back on track. I'm sure yours will too