White Spots/Buildup on Phal and Vanda Roots

[c123anderson]

Hi everyone. Yes, it's me again. Feeling like someone may need to come and do an intervention with my orchids.

Watering yesterday, I noticed on a few of my phals some uneven white bumps. These didn't appear to be moving, and almost had the appearance of mineral deposits. They're certainly not hairs. I did notice at the crown of one phal some white fuzzy stuff. Of course I panicked and thought the mealybugs were beginning again. I used some isoprophyl alcohol and spot treated the area.

This morning, I noticed similar white spotting on my vanda neofinetias. Again, treating with isoprophyl alcohol and thinking mealys were back.

Concerned plants are potted in sphagnum moss. Roots are declining. I had hoped this was due to the mealybug treatment and roots/plant would rebound, which is generally what's happening.

Do these symptoms (aside from the white fuzzy stuff) sound like mold or deposits and do you have any particular thoughts on how to distinguish?

I don't have any images that are clearly showing what I'm describing. I also want to not dive into a treatment, potentially further damaging plants.

Would cinnamon help in general? Any recommendations for how to use for a mold issue?

Thank you!