Version

6.0.0

Link to Minimal Reproduction

https://codepen.io/misanek/pen/XJXRBQq

Steps to Reproduce

1. create 2 charts with tooltips and async tooltip formatter ( setTimeout used in example)
2. add same group to those charts myChart.group = "group1";
3. connect charts using echarts.connect("group1");
4. hover over first chart, tooltip with value is shown
5. connected chart tooltip is stuck with Loading value ❌

Current Behavior

1. Hover over one chart
2. Tooltip is shown and value changes from Loading to Value: ${value}
3. Connected chart tooltip is shown but it is stuck in Loading ❌

Expected Behavior

1. Hover over one chart
2. Tooltip is shown and value changes from Loading to Value: ${value}
3. Connected chart tooltip is shown and value changes from Loading to Value: ${value}✅

Environment

- OS: Win 11
- Browser: Edge Version 141.0.3537.57 (Official build) (64-bit)
- Framework: none

Any additional comments?

No response