Looker embedded charts flickering

We’re embedding charts into a React application with the @looker/embed-sdk library and have encountered an issue. Some users experience persistent flickering and re-rendering of the embedded charts, which makes them essentially unusable (I’ve attached a video demonstrating this behavior).

Here’s what we know so far:

  • The issue only affects a subset of users and we can’t reproduce it internally.

  • We’re using the latest version of @looker/embed-sdk.

  • The flicker happens consistently for those affected, causing major disruption.

  • We’ve tried to debug but are stuck since we can’t recreate the problem on our end.

Our questions for the community:

  1. What are the best debugging approaches when you can’t reproduce an issue locally?

  2. Are there any known issues with chart flickering or re-rendering in the @looker/embed-sdk?

  3. Any advice on logging or tracing to better diagnose embedded React charts in production environments?

Video of issue - https://drive.google.com/file/d/1Zx1xOuYk4peY_nCOL1RJQl8LdkCyrf-J/view?usp=sharing