Type of container soil used? watering regime? Any pics available?

Timing suggests plant is burning up in the heat. Poke around in the soil to make sure it is moist, and that you are watering often enough to keep it moist.

Try moving it into some shade.

dark pots.. in sun.. can heat up ... roots dont like heat ... they usually use a cool night to lose the excess heat ... so if nights stay warm. or hot .... it never gets a recovery period ...

and that of course.. complicates proper watering ...

i agree to move it to bright shade ... until it recovers ... and then perhaps siting it.. so the sun doesnt hit the pot itself in the heat of the day .... e.g. other pots around it.. etc ... something to just shade the pot itself ...

those leaves arent going to recover.. and will eventually be shed ... look to new growth ... to see when the plant is happier ....

all that bare soil ... why in a pot????

ken

Nights are cool :-)