Both ends of the polyline are flickering, when viewer sets to 2D and mapMode2D:ROTATE
- Dominant language
- JavaScript
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Description
Hello,
when viewer sets to 2D and mapMode2D:ROTATE, draw a polyline and pan, ends of the line are flickering.

[Sandcastle link](https://sandcastle.cesium.com/#c=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)
Anybody knows solution ?
Contributor guide
Research direction
Start by reproducing the issue from the linked Sandcastle example: switch the viewer to 2D with mapMode2D:ROTATE, draw a polyline, and pan. Trace the polyline rendering path involved in that example; done means both line endpoints remain stable without flickering during panning.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100