[RbnJrg]

Originally Posted by DiapDealer

Hmmm... All of those variables should have been properly set in the launch script already. Perhaps your script is what got damaged.

What was in /usr/bin/sigil before you edited it?

The following:

#!/bin/sh

# Entry point for Sigil on Unix systems.
# Adds linked Qt's lib directory to the LD_LIBRARY_PATH

QTLIB_DIR="/usr/lib"
SIGIL_BIN_DIR="/usr/lib/sigil"

if [ -z "$LD_LIBRARY_PATH" ]; then
  LD_LIBRARY_PATH="$SIGIL_BIN_DIR:$QTLIB_DIR"
else
  LD_LIBRARY_PATH="$SIGIL_BIN_DIR:$QTLIB_DIR:$LD_LIBRARY_PATH"
fi

# Create an environment var for the Sigil share directory location.
if [ -z "$SIGIL_SHARE_PREFIX" ]; then
  SIGIL_SHARE_PREFIX="/usr"
  export SIGIL_SHARE_PREFIX
fi

# Not really needed anymore but left in for fringe cases
if [ -z "$SIGIL_EXTRA_ROOT" ]; then
  SIGIL_EXTRA_ROOT="/usr/share/sigil"
  export SIGIL_EXTRA_ROOT
fi

export LD_LIBRARY_PATH

exec /usr/lib/sigil/sigil "$@"
#!/bin/sh

But after restarting the system, the fix didn't work anymore. So I asked Gemini what can be wrong and told me to create a file named sigil.conf in /etc/ld.so.conf.d/ with the following content:

/usr/lib/sigil

and so far, all is working (even after restarting the system).