Epidendrum issues
 

Hey y'all,

Not sure whats up but looks like I have some issues with my Epidendrums.
First one is a Epidendrum baumannianum, which came with air roots and looked/looks still pretty healthy.

Than I have 4 others epidendrum-radicans crucifix, which came as pure cuttings, no roots nothing.

anyway, i have them in Bonsai Jacks bark mix (Bonsai Jack Universal Orchid Mix 2 Gallons (8 Dry Quarts) – Bonsai Jack (C)) with sphagnum moss, pretty much like I have all the rest of my orchids.

they have front window placement and 60% humidity. 66F - 75F.

https://abload.de/img/img_20200429_143019vbjga.jpg

https://abload.de/img/img_20200429_135158ebjvc.jpg

https://abload.de/img/img_20200429_135207unjqc.jpg


Any advises?
thanks!