Is it possible it's root bound, when was the last time you re-potted it? That pot looks small for a larger plant. Other members will have more advice to add.

The same thought came to me while reading it- it's most likely root bound and needs to be moved to a bigger pot.

Thanks for your replies! It was repotted about 3 weeks ago as originally its roots were very shallow in the soil and the plant couldn't keep its position even with a support. I've changed the pot to slightly taller one and I've put the roots a bit deeper. The plant doesn't have a massive roots system and it still has a lot of space in the pot. Maybe repotting gave it a lot of stress, it's not the best time for repotting anyway

Oh, that's important info and will make it more difficult (longer) to resolve. I'm sure someone will come along and provide info on root systems ...

"I've read it's due to overwatering but at the Same time the stems seem to be a dried out"

Overwatering deprives the root system of oxygen. Roots need oxygen in order to absorb water properly. Without oxygen, the roots cannot absorb water properly and therefore the plant begins to show signs of looking thirsty. In other words, it is dying of thirst in a sea of plenty.

How often do you water?

What soil is it in?

Does its current pot have drainage holes?

Agreed with goldstar. I'm willing to bet this is an over watering issue.

You said you put it in a new pot and have the roots deeper. Do you mean you added more soil on top of the roots? That's an issue. If you took the plant out of the pot and only added fresh soil on the bottom and sides, that also isn't helpful as the roots need to be untangled so they're not circling.

What type of soil?

My other questions would be the two directly above.

These plants in nature often grow as epiphytes so they do better if you treat them as such. Being in wet heavy soil is most likely the reason the roots were growing so shallow. Put down deeper in similar soil only made the problem worse. You need to get it into a light fast draining soil.

Thanks for your responses! The pot does have draining holes, I water the plant once a week. The old soil was completely removed and I potted it in some fresh compost mixed with sand with a layer of stones/grit at the base. I thinks that's the problem. I use a stick to make some holes to give some air to the soil.

After reading all your replies I came to the conclusion I have to repot it to a bigger pot with a proper soil/perlite mix to give it a good breathe.

An unglazed clay pot can be additional insurance against the potential of rotting roots.

Thank you very much for your help and tips! Dave your plant is beautiful, I hope mine will recover quickly :)

I'd do the emergency repot asap. Don't forget to trim dead roots and get rid of all the soil. you probably want to wash the roots to get it all out.

dont let the roots dry out either.

Have the roots just below the soil line. Don't add extra on top like you did last time.

best of luck and please post updates!

for some hope, here is the above plant last August:

The emergency repot finally done! I had no idea how difficult it is to find a pine bark... all sold out in local stores, I had to order it online and wait, prying for my plant not to die in the meantime. During the reporting I didn't notice anything worrying in regards to the condition of the roots, but I'm a bit worried about the root system in general. I tried to find on the internet how it's supposed to look like to compare, the root system of my plants look very weak in comparison... I guess there might be a problem as well. I don't know, the plant looked perfectly normal once it arrived to my house - using the same root system, but slowly it started to look worse and worse.. When I was reporting it for the first time I haven't done anything to the roots, just cleaned it from the old soil and put in the new one. In the pot there're basically 2 separate plants, the taller one has roots in a shape of half circle going horizontal, 2 thicker/old roots with very little smaller ones. I really regret I didn't take a photo... the lady I bought the plant from said she had cut the top as it was too tall, maybe she also cut the roots as well and sold me the plant before it started dying? And the repotting was just a trigger... I really hope the new soil mix will help it to recover. What else can I do?

UPDATE:

The bigger plant seems to be recovering well, it produced new roots. The smaller plant is very dry, so today I decided to remove it from the pot to see what's going on... and I had to remove part of the roots as they were in poor condition. I also added a bit of rooting powder, not sure if it was a good idea.

I expected reversed results to be honest, I thought bigger plant is going to die and smaller plant's going to recover.

Thank you all for your help!

Rooting powders usually have a fungicide in them and that should help the damaged roots.

Sorry, skim-reading a bit here. Is the one that has failed in the last post the one with an obviously wrinkly stem in the first post?

__Usually__ that wrinkly stem means the roots have failed and there is no coming back for that stem.