Funky output in VS Code test output only

[smil2k]

Switching tabs while running turns the log into this funly one:

Sometimes only the capital letters of the stack is effected:

It is not a font issue I suppose:

If I take this selection to the clipboard:

        at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
        at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)

The data seems to be right.

I did not see this problem in other panels, only the test output.

[jdneo]

Duplicated with #1618

It's an upstream issue of VS Code: microsoft/vscode#194156