Crash confirmed (commit a7a420b of 23 Jan 2023).
Stack trace:

0 0x0000555555fee881 in mu::engraving::Tuplet::add(mu::engraving::EngravingItem*) ()

1 0x0000555556902903 in mu::engraving::MusicXMLParserPass2::note(QString const&, mu::engraving::Measure*, mu::engraving::Fraction, mu::engraving::Fraction, mu::engraving::Fraction&, mu::engraving::Fraction&, mu::engraving::Fraction&, QString&, QList&, int&, mu::engraving::Beam*&, QVector&, int&, std::map, std::allocator > >&, std::map, std::allocator > >&) ()

2 0x0000555556905ef4 in mu::engraving::MusicXMLParserPass2::measure(QString const&, mu::engraving::Fraction) ()

3 0x0000555556907713 in mu::engraving::MusicXMLParserPass2::part() ()

4 0x0000555556908c5c in mu::engraving::MusicXMLParserPass2::scorePartwise() ()

5 0x0000555556909052 in mu::engraving::MusicXMLParserPass2::parse() ()

6 0x0000555556909271 in mu::engraving::importMusicXMLfromBuffer(mu::engraving::Score*, QString const&, QIODevice*) ()

7 0x0000555556909a88 in mu::engraving::importMusicXml(mu::engraving::MasterScore*, QString const&) ()

8 0x000055555688531f in mu::iex::musicxml::MusicXmlReader::read(mu::engraving::MasterScore*, mu::io::path_t const&, std::map, std::allocator > > const&) ()

Last console message:
DEBUG | main_thread | engraving | addRest: cannot add rest at tick 46/4 (22080) track 4: element already present

Relates to #270643: [EPIC] MusicXML import/export issues