Unsulfured is good. Rhizome was probably checking to see if your lockout is caused by too much S.

Here's why the indi looks better: It's a heavier feeder than the sat, or hardier. But it's not healthy! It has tipburn too, indicating overfertilization.

When you say filtered water, what do you mean? Where is it coming from? Is it sold as distilled water or drinking water?

What is the ppm of your nutrient solution? You should change the res again and go to a bloom fert that is lower than you had before, but still enough to let the plants feed. So if you were running at 1200 when you saw tipburn on the indi-dom, drop down to 900 or so. If you are running supplements, lose them for now and stick with your flower base nute (if you run a 3-part, the bloom + micro would be the 'base'), plus CalMag Plus if you are running distilled or RO water.