M. tenuifolia brown spots and dry tips

[King_of_orchid_growing:)]

What fishmom said was pretty much what I was going to say except that maybe some of the roots might have died back due to being kept too wet. Semi-hydroponics materials such as LECA or Hydroton retain a lot of moisture. The roots may either need to adjust, or if the plant is not adjusting well, then you may have to take it out of SH.

I'd also like to say is that what you're describing is not normal for the plant.