Brown bottom roots on OD plant. HELP!

the bottom roots have turned brown and the plant iss still alive i noctice while i was transplanting it..
what will happen?

the roots probably are getting rotted... or have scortched by the sun... couldn't tell without pics though... good luck

hydro? if so you might need more air pump/stones in the res or temp could be too high, and or you might need to add some h202 to the water.