Upgrading to 2022021801 nightly has made most of my rooms vanish and/or corrupt

[ara4n]

Steps to reproduce

1. Was running nightly prior to Feb 18 (probably a build from Feb 15 or so)
2. Upgraded
3. All my spaces disappeared, and most of my rooms, and remaining rooms seem to have lost state.

Outcome

What did you expect?

The application not to selfdestruct on upgrade

What happened instead?

The app selfdestructed on upgrade.

Operating system

macOS

Application version

nightly 2022021801

How did you install the app?

nightly

Homeserver

matrix.org

Will you send logs?

Yes

[dbkr]

2022-02-18T18:19:38.331Z E Error processing cached sync TypeError: Cannot read properties of undefined (reading 'getId')
    at Room.createThread (vector://vector/webapp/bundles/5fb8ea8c2bb655aeece7/init.js:30926:51)
    at Room.addThreadedEvent (vector://vector/webapp/bundles/5fb8ea8c2bb655aeece7/init.js:30915:23)
    at async MatrixClient.processThreadEvents (vector://vector/webapp/bundles/5fb8ea8c2bb655aeece7/init.js:50141:7)
    at async vector://vector/webapp/bundles/5fb8ea8c2bb655aeece7/init.js:72311:7
    at async Object.promiseMapSeries (vector://vector/webapp/bundles/5fb8ea8c2bb655aeece7/bundle.js:1182:5)
    at async SyncApi.processSyncResponse (vector://vector/webapp/bundles/5fb8ea8c2bb655aeece7/init.js:72235:5)
    at async SyncApi.syncFromCache (vector://vector/webapp/bundles/5fb8ea8c2bb655aeece7/init.js:71800:7)
    at async SyncApi.recoverFromSyncStartupError (vector://vector/webapp/bundles/5fb8ea8c2bb655aeece7/init.js:71500:5)
    at async getPushRules (vector://vector/webapp/bundles/5fb8ea8c2bb655aeece7/init.js:71580:9)

this is probably worth at least looking at before RC

[ara4n]

(reloading the desktop app recovered as if nothing had happened)

[germain-gg]

Will take a look at that this morning

[ara4n]

This just happened again.

[t3chguy]

2022-02-26T17:50:47.542Z E Error processing cached sync TypeError: Cannot read properties of undefined (reading 'localTimestamp')
    at Room.createThread (vector://vector/webapp/bundles/5a49dfe6eced0bf94934/init.js:21312:84)
    at Room.addThreadedEvent (vector://vector/webapp/bundles/5a49dfe6eced0bf94934/init.js:21282:23)
    at async MatrixClient.processThreadEvents (vector://vector/webapp/bundles/5a49dfe6eced0bf94934/init.js:19432:7)
    at async vector://vector/webapp/bundles/5a49dfe6eced0bf94934/init.js:66237:7
    at async Object.promiseMapSeries (vector://vector/webapp/bundles/5a49dfe6eced0bf94934/bundle.js:1182:5)
    at async SyncApi.processSyncResponse (vector://vector/webapp/bundles/5a49dfe6eced0bf94934/init.js:66161:5)
    at async SyncApi.syncFromCache (vector://vector/webapp/bundles/5a49dfe6eced0bf94934/init.js:65726:7)
    at async getFilter (vector://vector/webapp/bundles/5a49dfe6eced0bf94934/init.js:65622:7)