Rooms missing or showing as just usernames or Empty room

[voice06]

Steps to reproduce

Just running the Desktop app as normal

What happened?

What did you expect?

Normal operation with all rooms accounted for.

What happened?

Multiple rooms missing, then reappearing as Empty room or a list of users. In addition the rooms appear as v1 with no room state info other than m.room.member, looking in the dev console I see messages like:

rageshake.js:65 [getType] Room !YTvKGNlinIzlkMTVRl:matrix.org does not have an m.room.create event
rageshake.js:65 [getType] Room !ukQuoWmDilxTuWNMjH:afternet.org does not have an m.room.create event
rageshake.js:65 [getType] Room !ehXvUhWNASUkSLvAGP:matrix.org does not have an m.room.create event
rageshake.js:65 [getType] Room !AZozoWghOYSIAfaZjJ:matrix.org does not have an m.room.create event
rageshake.js:65 [getType] Room !vHQXPGHpMwXbYrTNnq:libera.chat does not have an m.room.create event

I've tried clearing the cache and restarting Element but the issue persists. Its like for some reason Element has lost the room state for multiple rooms and is unable to resync properly.

Operating system

Linux Mint

Application version

Element version: 1.9.0 Olm version: 3.2.3

How did you install the app?

Debian apt repo

Homeserver

randomsonicnet.org

Have you submitted a rageshake?

No

[voice06]

I've also just noticed that under spaces even though I'm in the Matrix space it the space doesn't show with the others. None of these issues are seen in Element Android.

[voice06]

Downgraded Element-Desktop to the previous version this morning and everything looks normal.

Element version: 1.8.5
Olm version: 3.2.3

Re-upped to 1.9.0 and its still looking normal.

[voice06]

Found another room missing, went back to 1.8.5 to recover it, got the room back as a v6 room with full room state data. Re-upgraded to 1.9.0 and its now showing as Empty room, v1, no room state data.

[novocaine]

Thanks for the report.

• What homeserver is randomsonicnet.org running? (and version?)
• Are you able to send us a rageshake?
• Do you have any suspicious failures in the dev tools console? (Ctrl+Shift+I)

[voice06]

Its running Synapse v1.43.0

I just sent in a rageshake

Not seeing anything suspicious at the moment

Currently though the room that was messed up is loading properly this morning.

EDIT: Spoke too soon, loaded Element 1.9.0 on another computer and it is showing the issue. I have sent a rageshake from that computer as well.

[t3chguy]

Looks like sync/sync accumulator issues which would cascade to all downstream room state consumers (e.g spaces) rather than an actual spaces issue.

[voice06]

Just wanted to update that this issue is still present in Element 1.9.2 / Synapse 1.44.0.

[bionemesis]

This just started happening to one our users. Is there any update on what's going on here?

[novocaine]

This just started happening to one our users. Is there any update on what's going on here?

Thanks for reporting. We don't have enough to go on at the moment - can you please let us know

• the version of element web being used
• the version of the homeserver
• if you're willing to share screenshots (even heavily redacted ones), that would help

Also, if your user could send us debug logs, that would be helpful

[setpill]

Happening to me too, the new Matrix HQ room is bugged for me. Showing as "[Username] and 27050 others".

the version of element web being used

1.9.3

the version of the homeserver

Not sure how to find that out. My account's homeserver is matrix.org. So is the room's.

if you're willing to share screenshots (even heavily redacted ones), that would help

Channel list:

What the (old) "Matrix HQ" room looks like (when you click the The conversation continues here link you go to the room with no name).

[t3chguy]

Duplicate of #8246