Lut speller does not work in LibreOffice

[rueter]

I use Mac M2 Ventura.
I have proofread myv text in both .txt and .docx format.
I can define language for entire document as lut.

But:
I am unable to use nuvviDspeller to access version, anymore.
No word forms are underlined, even the XML tag names

This is a recent development, because I was able to document problems with full stops in issue #2

[snomos]

Duplicate of #4.