Hello. I am from Russia and do not speak English, I write through a translator, I apologize for the errors in the text.
I have such a problem when installing track switches. I use fixed tracks for the convenience and speed of mounting the necks of stations. But in TRS2019 there was a problem. If fixed tracks are attached to the switch, then the switches are not connected to each other, they immediately fall off. Because of this, it is very difficult to build a station. The process is very slow. Do not judge strictly for excessive punctuality, I'm just a perfectionist and I like perfectly straight rails.
In Traintz 12 and in TANE such errors have never been observed.
Here is a screenshot:

The black arrows show where I am trying to connect structure 1 and structure 2 to each other. Red Cross - where the fiesed track falls off, that is, from all sides.
I wanted to upload a video, but YouTube doesn’t process the video. Already a very long processing 0%.
You can do this experiment yourself:
Take 2 switch patterns, for example: TSX 1/11 R P65 2768. Look for <kuid:9768:528984835> on the DLS. Attach these switches on all sides of the fixed track <kuid2:354694:112502:2>. Try to connect the structures to each other on each side.
UPD.
Video:
I have such a problem when installing track switches. I use fixed tracks for the convenience and speed of mounting the necks of stations. But in TRS2019 there was a problem. If fixed tracks are attached to the switch, then the switches are not connected to each other, they immediately fall off. Because of this, it is very difficult to build a station. The process is very slow. Do not judge strictly for excessive punctuality, I'm just a perfectionist and I like perfectly straight rails.
In Traintz 12 and in TANE such errors have never been observed.
Here is a screenshot:

The black arrows show where I am trying to connect structure 1 and structure 2 to each other. Red Cross - where the fiesed track falls off, that is, from all sides.
I wanted to upload a video, but YouTube doesn’t process the video. Already a very long processing 0%.
You can do this experiment yourself:
Take 2 switch patterns, for example: TSX 1/11 R P65 2768. Look for <kuid:9768:528984835> on the DLS. Attach these switches on all sides of the fixed track <kuid2:354694:112502:2>. Try to connect the structures to each other on each side.
UPD.
Video:
Last edited: