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element-hq / element-web

A glossy Matrix collaboration client for the web.
https://element.io
GNU Affero General Public License v3.0
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Timeline problems: jumping up and down and infinitely loading #28067

Open dkasak opened 1 month ago

dkasak commented 1 month ago

Steps to reproduce

  1. Enable /jumptodate
  2. Join the Office of the Matrix.org Foundation
  3. /jumptodate 2024-09-01
  4. Try scrolling down. Notice frantic jumping of the timeline.
  5. /jumptodate 2024-09-02
  6. Try scrolling up. Notice infinite loading and slowdown.

Outcome

What did you expect?

For the timeline to scroll, smoothly.

What happened instead?

It did not.

Some potentially related log snippets:

TimelinePanel.tsx:91 Uncaught TypeError: Cannot read properties of undefined (reading 'localTimestamp') at vd (TimelinePanel.tsx:91:18) at TimelinePanel.tsx:531:53 at Vt (lodash.js:816:11) at $i (lodash.js:7372:14) at Object.onUnfillRequest (TimelinePanel.tsx:531:19) at ScrollPanel.tsx:469:17

rageshake.ts:77 RangeError: Invalid array length at Array.push () at L.getEvents (timeline-window.ts:421:24) at _d.getEvents (TimelinePanel.tsx:1696:49) at TimelinePanel.tsx:627:49

Operating system

Arch Linux

Application version

Element version: 1.11.75 Crypto version: Rust SDK 0.7.1 (c8c9d15), Vodozemac 0.6.0

How did you install the app?

Arch Linux repo

Homeserver

No response

Will you send logs?

Yes

rda0 commented 1 week ago

I also notice this all the time when using the search function:

  1. Search something
  2. Click on some old message
  3. Start scrolling down. Notice frantic jumping of the timeline (I think mostly jumping up in that case).

Sending logs...

simonmichael commented 3 days ago

Me too - I have seen this occasionally for a long time, eg today in Element Desktop Nightly on mac, I could not scroll through the last two days of backlog in a room, it kept jumping confusingly backward at a certain point. Later it stopped doing that.

I did have Jump to date enabled in Settings > Labs. Probably not the cause, but I'll turn it off for a while to see if it makes any difference.