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Matrix: Element Desktop is unusable on Windows

Monday, 11 May 2026 08:00:00

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◆ This issue is not resolved yet

Currently, some users are seeing the following error message in Element Desktop for Windows:

Event indexer threw an unexpected error

Error: internal error in Neon module: called `Result:unwrap()` on an `Err` value: SendError { .. }`

There is currently no reliable solution to fix this problem. A clean install might help.

Workaround

Alternatively, you can use Element Web at matrix.tu-dresden.de. As always, please keep the following points in mind:

  • Always use more than one active Matrix session, for example on your smartphone.
  • Enable the key storage and keep the recovery key in a safe place. Verify every new session.
  • Never clear your browser’s entire cache while you have a Matrix session open.