4.x-dev: difficulty with first-time opening of latest nightly
OS: Linux Mint 20.1, Arch.: x86_64, MuseScoreNightly-latest-x86_64 (Downloaded 3 Dec 2021)
The latest nightly won't run at all. An outline of the program window temporarily appears (transparent), and the usual documents folders are automatically created, but no splash screen, and the program window doesn't appear.