Masdevallia abbreviata leave issues

[Beginnerluck]

Thank you for reading my thread ... I’m new to Masdevallias although not new to orchids .
I recently received several Masdevallias from an eBay auction and I’m questioning the leaves for fungal, bacterial,
environmental , or even pest issues ... or is it this plants natural look and I just need more education .
The plant does have new growth since I’ve received it , also has a few Keiki. The leaves feel thick, not very pliable, almost as if the issue is on a cellular level.
The plants are in sphagnum moss/ seedling mix , humidity relatively high (60%) depending on time of day , temp averages 68 daytime / nights average 50.
Any suggestions would be appreciated ...