Phalaenopsis with purple spots, disease?

[marya500]

Hello!
Seeking help for my Phalaenopsis. I have had it since June, and must admit I'm new to orchids.

The new leaves on my Phalaenopsis have developed small purple spots. I am not sure if this a bacterial or fungal disease, or something else. I researched online, for what this could be, looked at different pictures of diseased orchids, but not sure i have found the right answer. I am assuming it is fungal?

The leaf that grew with purple/dark spots had a weird shape. So i cut it and treated the cut with cinnamon. But of course the leaf is still growing with purple spots.

I moved the plant away from others, to a more ventilated area. And am being more careful to water only in morning. Otherwise the plant seems strong, roots look okay, other leaves are strong, and even new stems are growing.

I'm worried about the leaves that look sick. Should I cut it again and treat with cinnamon, or should I use something stronger. What do you suggest?

Thank you