Archives error after changing backend

Graylog Central (peer support)
1

Graylog version 3.3.10+4f5ddbc, codename Sloth Rocket
Elasticsearch installed on same server

I have deleted an archive backend whilst a job was going on. The job has finished now but going to /system/archives gives me a “something wrong” page

Cannot read property 'graylog_0' of undefined

Stack Trace:

TypeError: Cannot read property 'graylog_0' of undefined
    at http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:146:682098
    at Array.map (<anonymous>)
    at i.value (http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:146:681963)
    at Wi (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:69874)
    at Pi (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:69669)
    at Ms (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:105468)
    at uc (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:96715)
    at sc (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:96640)
    at Qs (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:93670)
    at http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:45312
    at exports.unstable_runWithPriority (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:42:3988)
    at Xo (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:45021)
    at Ko (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:45257)
    at Uo (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:45192)
    at Gs (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:90455)
    at Object.enqueueSetState (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:26:48977)
    at t.y.setState (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:34:1296)
    at a.n (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:18:2700)
    at a.emit (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:133:220231)
    at f.trigger (http://10.2.17.6:9000/assets/vendor.8d6aa5835c8302c41e2f.js:18:3581)
    at http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:146:688413
    at u (http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:66:207582)
    at k._settlePromiseFromHandler (http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:66:180520)
    at k._settlePromise (http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:66:181320)
    at k._settlePromise0 (http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:66:182019)
    at k._settlePromises (http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:66:183371)
    at s (http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:66:134543)
    at c (http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:66:134482)
    at a._drainQueues (http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:66:135596)
    at drainQueues (http://10.2.17.6:9000/assets/plugin/org.graylog.plugins.enterprise.EnterprisePlugin/plugin.org.graylog.plugins.enterprise.EnterprisePlugin.e93cf643f28c5d189476.js:66:134416)

Component Stack:

    in i
    in div
    in t
    in div
    in t
    in span
    in i
    in ArchivePage
    in div
    in t
    in div
    in t
    in t
    in AppWithoutSearchBar__StyledRow
    in div
    in t
    in div
    in t
    in AppContentGrid__Container
    in u
    in St
    in div
    in wt
    in o
    in Unknown
    in withRouter(Component)
    in d
    in mt
    in ConnectStoresWrapper[mt] stores=currentUser
    in i
    in RouterContext
    in Router
    in ar
    in Unknown
    in ConnectStoresWrapper[Unknown/Anonymous] stores=streams
    in lr
    in Unknown
    in n
    in Y
    in ConnectStoresWrapper[Y] stores=currentUser,server,sessionId
    in t
    in p
2

For further reference, this error magically disappeared overnight.

The archive catalogue now shows up without error