Masd ‘Sunset Jaguar Nightbreed’ yellowing

[harpspiel]

Just got one of my long time wishlist plants, Masdevallia ‘Sunset Jaguar Nightbreed’ - shipped from California and arrived 4 days ago. It shipped without a heat pack due to CA’s heat wave, it wasn’t terribly cold when I got it and it looked green, but this could possibly be either heat or cold damage.

I unpotted the plant and it had mostly good roots but an old dead section that I removed. I soaked it in an RO/alum solution for a few hours (my preventative against snails - I bleach the plants I can bleach, others get alum, which doesn’t even hurt moss) then potted in LFS I recently (a few days before) baked to sterilize. I’ve been keeping it lightly moist with RO and 1/4 strength MSU fertilizer since, sitting in my grow tent at 80% humidity and temps 65-75, next to my Masdevallia lamprotyria and ‘Anai’.

Today I noticed 4 out of 6 leaves yellowing and I’m freaking out a little bit, it dropped 2 of those leaves right after I took the pic. Is it just sulking from shipping/repotting or is there something I’m doing wrong here? I’m quite good at most Pleurothallids but Masdies don’t love me as much as I love them…