[SOLVED] why Fields in the Atahualpa 3.3.3 does not expand? css inserts, html inserts

hi,

i have come across some problem in version 3.3.3. i don't know the technical term but all the fields such as css inserts, html inserts, etc does not expand when i type or paste my code. before when i switched to 3.3.3 i can just paste a 4 line code, the field would expand on its own and all the code would be visible. but now for some reason i type or paste code, only one line is visible.

this is happening with all the fields in Atahualpa 3.3.3 option. is it interfering with something? how do i enable it like before?

i have taken a screenshot of the field i am referring to here

plz check and let me know. because i can't anything beyond one line. thanks