Fixed glazing plastic window is leaking

Hello everyone

It’s about a solid house built in 2018/19, in which I have plastic windows.
One of them is a two-sided casement window, which connects at the bottom side to a fixed glazing over the entire length.
So at the bottom there is floor-to-ceiling fixed glazing over about 2m and above that 2 x 1m casement windows.
By chance, I just noticed that the fixed glazing seems to be leaking and as if that wasn’t strange enough,
it is also a very weird spot.
The lower frame consists of two parts, so it has a "plastic seam," a joint, whatever, between both parts.
And moisture is coming out of there and it is also somewhat brownish discolored.
I attached a photo.
Now the actual question?
How can something like this be possible?
It is currently dark outside and raining, so I can’t check if there are drainage caps there. But on fixed glazing rather not, right?
Hope you have a hot tip for me.
It hardly seems that anything beneath the laminate has become damp, but of course I want to fix the cause as quickly as possible...

Regards
Enrico

To my knowledge, a steel profile for strength/stability is embedded inside plastic windows. If the profile is now leaky, water can penetrate and the steel will then rust, and as a result, rusty water can leak out. Built in 2018/2019 = clear warranty case (mEA) Regarding the usual profile construction in plastic windows, can certainly tell you more ;-) I would almost suspect that if water is coming out, the profile is half filled with water. Maybe detectable by a knock test?

This seems to be more of a profile duplication under the frame. Possibly the [Kompriband] is missing between the profiles, or there is condensation due to the additional profile. These usually do not have thermal insulation and are therefore not installed by the manufacturers, but only supplied loosely. Whoever installs it then has the problem,...

No, that is clearly the mounting rail that sits on the frame. You can recognize it by the rubber lip at the top edge.

I can't say much about the cause of the defect.
For the 2019 model year, you should still have a warranty. Contact the [GEU/GÜ] or the window manufacturer, depending on who your contracting party was.

@11ant can surely tell more about the usual profile structure in plasticsfffenstern ;-)

11ant cannot stand the new "spelling" at all :-( and is highly surprised by

No, that is clearly the mounting strip that sits on the frame. Recognizable by the rubber lip at the upper edge.

because on the Dalli-Klick image you actually can't "recognize" anything. It is the usual :-( megapixel zoom without the slightest context in the overall situation ...

@

Rubber lip on the frame profile?

But as @ writes, the picture belongs in the trash,...