Created attachment 1639075 [details]
Minimal example

Description of problem:
When I try to use XCharter as maths font (set with the help of the newtxmath package), my LaTeX document fails to build.

Version-Release number of selected component (if applicable):
2019

How reproducible:
Always. This used to work with TeX Live 2018 on Fedora 31, before the 2019 update was pushed.

Steps to Reproduce:
1. Download the attached minimal example (test.tex).
2. Run in a terminal: lualatex test.tex

Actual results:
! error:  (type 1): cannot find encoding file 'xch_tuu2ww.enc' for reading
!  ==> Fatal error occurred, no output PDF file produced!

Expected results:
LuaLaTeX should run without error and should produce a PDF file.

Additional info:
The error occurs regardless of whether I call lualatex, xelatex or pdflatex.

Since I'm not familiar with how font encoding works in TeX, I'm not sure what the root cause is here. Apparently, a required encoding file is missing:
$ find /usr/share/texlive -iname '*tuu2ww*'
(no output)

But that encoding string is still referenced in the installation:
$ rg -l tuu2ww /usr/share/texlive 
/usr/share/texlive/texlive.tlpdb
/usr/share/texlive/texmf-dist/fonts/map/pdftex/updmap/pdftex.map
/usr/share/texlive/texmf-dist/fonts/map/pdftex/updmap/pdftex_ndl14.map
/usr/share/texlive/texmf-dist/fonts/map/pdftex/updmap/pdftex_dl14.map
/usr/share/texlive/texmf-dist/fonts/map/dvips/updmap/psfonts.map
/usr/share/texlive/texmf-dist/fonts/map/dvips/updmap/psfonts_t1.map
/usr/share/texlive/texmf-dist/fonts/map/dvips/updmap/psfonts_pk.map
/usr/share/texlive/texmf-dist/fonts/map/dvips/updmap/ps2pk.map

Note that RPM offers contradictory claims about the contents and capabilities of the texlive-xcharter package:
$ rpm -ql texlive-xcharter | grep -i tuu2ww
(no output)
$ rpm -q --provides texlive-xcharter | grep tuu2ww
tex(xch_tuu2ww.enc) = 2019