arguments to dbus_message_iter_append_basic() were incorrect, assertion "_dbus_check_is_valid_utf8 (*string_p)" failed

Using Debian Testing and vlc 3.0.4.

When playing a couple of mkv files I have, vlc fails with the assertion:

VLC media player 3.0.4 Vetinari (revision 3.0.4-0-gf615db63) [0000557e6fbff570] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface. dbus[11656]: arguments to dbus_message_iter_append_basic() were incorrect, assertion "_dbus_check_is_valid_utf8 (*string_p)" failed in file ../../../dbus/dbus-message.c line 2754. This is normally a bug in some application using the D-Bus library.

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