If it's only those two leaf?, I wouldn't worry cut them off. Could be wind damage from a fan? Sometimes the leafs overlap and in the dark hours they get a dew between them then the lights come on and burn them? ....Sherlock Holmesing this.
Where on the plant is it starting, top, mid, lowers..?
...distance to lights? ...T and RH%?
...too soon to call, could be P defc. though.... get me more info...
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