Help! Why are new leaves dying?

The last 3 new leaves have not unfurled. They turn yellow, and eventually turn black with never unfurling. I just checked the soil/roots. There is no root rot. Roots look happy. I even see arial roots popping up. I water when the top 2-3 inches are dry. Fertilize once a month. Definitely no pests. Should I cut the new dead leaves? How can I prevent this in the future? FIY I did buy this monstera half-dead on clearance about 4 months ago and it has done a tremendous turn around since.