Spots on new leaves

[Florr]

Guys,
I hope you can help! I searched all over the internet and couldn't find anything like what I'm having.

Several of my phalaenopsis have been putting out some very strange and deformed new leaves. I haven't seen any bugs or spidermite damage on the other leaves, just the new ones. Also the phals are in very good overall health - they look good, they're all actively growing new roots.

Should I treat them with something? Are those bugs? Or it's something to do with the fertilizer?

Thanks so much!