Klayout layer names disappearing/never appearing at all on MacOS

[megamegan1]

I'm using a technology package from a company to design a device, this comes with named layers. When I use the technology package the layers do not appear at all. I have this working on my Windows PC, so, I tried opening a file I created with the layers on my Windows Klayout on my Mac and the layers are there but the layer names are gone too.

This has happened with previous designs, without using any specific technology packages, I will save + close the layout and when I open it again, all the layer names are removed. Also, all the colours and stipples chosen for the layers are reverted back to some automatic setting of klayout.

Any ideas?

Thanks

[klayoutmatthias]

It appears as if the technology is not attached to your layout. A screenshot was helpful.

1. Check if the technology is available in the technology drop-down menu. Here it is "scmos":

2. Load your layout.
3. Check if the layout is assigned. In my case it was not because I used "Open Recent" which remembers the last technology used:

5. If the wrong technology is selected, press the "technology" button to assign it:

6. Now I have selected the right technology and the layer properties are updated:

These screenshots are taken from Linux. I'm not an Apple enthusiast, so I can't speak for MacOS.

Matthias