Proofreading gets stuck with expired token

[fm3]

A proofreading (aka editable mapping) annotation could not load anymore (showed missing buckets for all buckets in the header)

Backend logging shows:

2024-01-11 12:40:00,032 [ERROR] com.scalableminds.webknossos.datastore.rpc.RPCRequest - Unsuccessful WS request to https://<datastoreUri>/data/datasets/<orga>/<dataset>/layers/segmentation/data (ID: 269392).Status: 403. Response: Token may be expired, consider reloading. Access forbidden: No read access on dataset

Showed like this for multiple users (not a frontend cache problem)

Restarting webknossos (tracingstore + wk backend container) helped (did not restart the datastore)

Probably a caching issue (?) Unfortunately I don’t have steps to reproduce, seems to occur very rarely.

We should check if the token value should have shown in the logging. Was there no token passed at all?