Thanks, I’ll take a look! I did check the roots recently and couldn’t see any rot. It’s always been in good jungle soil with airflow and drainage so I have been at a loss for what it needs.
It is a Ctenanthe! Thanks again, I am not sure about lubbersiana, but now I can check more easily.
Is it? I thought overwatering discoloured the whole leaf, but I admit I am in need of plant care education.