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Scrollback incorrectly claims “beginning of room” #3768

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ara4n opened this issue Feb 8, 2025 · 3 comments
Open

Scrollback incorrectly claims “beginning of room” #3768

ara4n opened this issue Feb 8, 2025 · 3 comments
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A-Timeline S-Major Severely degrades major functionality or product features, with no satisfactory workaround T-Defect X-Needs-Rust This issue needs a Rust SDK change. It must have a link to a Rust SDK issue Z-Labs A defect in a feature that is behind a labs flag.

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@ara4n
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ara4n commented Feb 8, 2025

Steps to reproduce

  1. I went to https://matrix.to/#/%23element-x-android:matrix.org
  2. I tried to read scrollback
  3. It told me falsely i was at the beginning of the room.
ScreenRecording_02-08-2025.12-00-59_1.mp4

Outcome

What did you expect?

reliable scrollback

Your phone model

No response

Operating system version

No response

Application version

834

Homeserver

No response

Will you send logs?

Yes
@ara4n ara4n added the T-Defect label Feb 8, 2025
@kenrachynski
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I am seeing similar behaviour today on the regular TestFlight release (build 145). And it seems to be tied to when I updated the app from TestFlight and restarted.

@Hywan Hywan assigned Hywan and unassigned Hywan Feb 10, 2025
@bnjbvr
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bnjbvr commented Feb 11, 2025

Thanks for opening an issue. The rageshake linked here doesn't contain sufficient information, as it doesn't provide any log for the event cache's pagination code. If anyone is willing to set the matrix_sdk::event_cache log level to trace in the app, and send another rageshake next time you encounter the issue, that would be amazingly useful!

@pixlwave pixlwave added X-Needs-Rust This issue needs a Rust SDK change. It must have a link to a Rust SDK issue A-Timeline S-Major Severely degrades major functionality or product features, with no satisfactory workaround Z-Labs A defect in a feature that is behind a labs flag. labels Feb 12, 2025
@Hywan
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Hywan commented Feb 21, 2025

We believe it has been fixed by matrix-org/matrix-rust-sdk#4632. Once it's in the nightlies, we can test it again.

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Labels
A-Timeline S-Major Severely degrades major functionality or product features, with no satisfactory workaround T-Defect X-Needs-Rust This issue needs a Rust SDK change. It must have a link to a Rust SDK issue Z-Labs A defect in a feature that is behind a labs flag.
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@kenrachynski @Hywan @bnjbvr @ara4n @pixlwave