Yellow spots on Cymbidium leaf

[Jax79]

Can anyone help me identify the problem with these two cymbidiums? One is a seedling and one is an established, blooming sized plant. They are in two different windows, but have both developed these yellow spots on the leaves. My other two Cyms have not developed this problem.

Thanks for any help!

[estación seca]

I can't see the photos well on my phone. It might be insect damage, perhaps leaf miners.