New words order disrupted

the order of appearance of new words in one of my lists has been disrupted. I have new #0 to new #9 and then new #12736 and more. 12736 appears before in my sessions than 0 to 10.

any idea why ?

I don’t think it has anything to do with burying new siblings or review siblings and there is only one of these first 10 words is in orange

thank you

The deck you click on to study is the one that matters. Check its deck options, in particular the new card gatger and sort orders.