Using chart.js, in vue, there is a tab bar that dynamically switches between different line charts. When the mouse rolls over the chart, it will switch to the previous chart. What's going on?

drawLine () {
  let wrapper = null
  if (this.tabindex == 1) {
    wrapper = document.querySelector("-sharpsignChart1").getContext("2d");
  } else if (this.tabindex == 2) {
    wrapper = document.querySelector("-sharpsignChart2").getContext("2d");
  } else if (this.tabindex == 3) {
    wrapper = document.querySelector("-sharpsignChart3").getContext("2d");
  } else {
    wrapper = document.querySelector("-sharpsignChart4").getContext("2d");
  }
  console.log(wrapper)
  let options = {
    type: "line",
    data: {
      labels: this.chart.labels,
      datasets: this.chart.data
    },
    options: {
      scales: {
        yAxes: [
          {
            ticks: this.chart.ticks
          }
        ]
      }
    }
  };
  this.chartLine = new Chart(wrapper, options);
  this.chartLine.update();
},
Jan.14,2022
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b35740-2bfb0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b35740-2bfb0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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