The files from the latex-lab-dev package have been installed in tex/latex/latex-lab-dev instead of the correct tex/latex-dev/latex-lab.
That means that they are now beside the normal latex-lab and it is undefined which files are used from the two bundle if you run latex(-dev).
The files from the latex-lab-dev package have been installed in
tex/latex/latex-lab-dev
instead of the correcttex/latex-dev/latex-lab
. That means that they are now beside the normallatex-lab
and it is undefined which files are used from the two bundle if you run latex(-dev).