Symbology is not exported correctly when categorized in QGIS

[Jordanluiz]

Both in point layers and in lines, when they are categorized, the export assumes only one of the styles (the first or the last).

Lines:

Categorized

QGIS

Google Earth

Points:

categorized

QGIS

Google Earth

[hamiltoncj]

What version of QGIS are you using and what operating system are you on? Categorized lines work fine for me and the last time I tried it, points did as well. I will need more details on your setup and perhaps a sample QGIS project you are working with.

[hamiltoncj]

@Jordanluiz One thing you need to be careful with is that the line symbol has to be simple. The KML specification has no ability to create complex symbology.

[Jordanluiz]

@hamiltoncj I was using version 3.30 on Windows 11 and it only works fine when using version 3.22 of QGIS. The error stopped happening when I stopped categorizing using more than one field in the value.

When I use it this way, the error occurs:

[hamiltoncj]

I was able to replicate this and the issue is that you are using an expression rather than a simple attribute. I will spend a little bit of time looking at the problem and see if it is an easy solution to fix. My hands are tied a little as I have been pulled off from QGIS development. I am still allowed to do some minor bug fixes.

As a temporary solution you can create a virtual string attribute and use the expression to fill it in then you can select the virtual attribute as the categorized style. The KMZ export will then work correctly.