Phal health advice (deformed leaves)

[sine__nomine]

Hello everyone! First time poster, just registered. Please excuse my english, it's not my first language.
I'm a new orchid grower. I bought my Phal the 19th of November 2022, from a shop who was keeping it outside at the beautiful temperature of 7°C. I decided to do my best to save it (payed 1€ for it).

The Phal came with deformed leaves (see pictures) I suppose from the heavy stress it was going through. It also had two stems: the first one with one open flower and one about to open, the second one cut near the base.
Over dicember I managed to make the flower open and grow another one that opened too, but smaller with respect to the first two.
By the beginning of January the flowers fell off and since here in Italy it was winter I decided to attempt a rebloom by cutting the stem just above the first not opened node (I covered the cut with a bit of cinnamon powder, to help it dry quickly). I repotted it in bark the same day. You can see in the picture below how that is going (is it good? Is it not? The color of the stem below the cut it's what worries me the most).

The second stem (see picture) just deteriorated over time, I guess it's dying, what should I do with it?

I determine when to water it by using a scale, I weigh it every morning, when the weight decreases by one gram or less I water it by soaking it for 10 minutes in tepid water with a fertilizer with NPK 3-4-5.

The pictures are from this morning, I have to water it most probably tomorrow.

I keep it on a desk where it gets indirect light from a east facing window, the temperature in the room over the winter oscillated between 18°C and 22°C, it's gonna increase a lot in the summer.

Could you give me an opinion on the general health of the roots? And about the leaves, it never grew a new one, just shed the one at the bottom and another one is about to die to. Is it normal since it was winter or the heavy stress from the beginning is not allowing new leaf growth?

Thanks everyone in advance for the help!
Deformed leaves:
Deformed-Leaves hosted at ImgBB — ImgBB
Main stem, reblooom attempt:
MainStem hosted at ImgBB — ImgBB
Main roots, new root growth:
New-Root-Growth hosted at ImgBB — ImgBB
Generic root in pot, bark condition:
Root-In-Media hosted at ImgBB — ImgBB
Second dying stem, dying bottom leaf, other main roots:
Second-Stem hosted at ImgBB — ImgBB