We're still getting:
```
2016-07-12 18:38:21 [V4U5HApAMDgAACyfYbEAAAAX] mw1221 commonswiki 1.28.0-wmf.8 exception ERROR: [V4U5HApAMDgAACyfYbEAAAAX] /w/api.php?action=query&format=json&origin=https%3A%2F%2Fes%2Ewikipedia%2Eorg¢ralauthtoken=7b1aae48ebbcd1df01a7c0202a45c59e2cfeec6&meta=siteinfo&siprop=uploaddialog&formatversion=2 UsageException from line 1487 of /srv/mediawiki/php-1.28.0-wmf.8/includes/api/ApiBase.php: Can only obtain a centralauthtoken when using CentralAuth sessions {"exception_id":"V4U5HApAMDgAACyfYbEAAAAX"}
[Exception UsageException] (/srv/mediawiki/php-1.28.0-wmf.8/includes/api/ApiBase.php:1487) Can only obtain a centralauthtoken when using CentralAuth sessions
#0 /srv/mediawiki/php-1.28.0-wmf.8/extensions/CentralAuth/includes/api/ApiCentralAuthToken.php(51): ApiBase->dieUsage(string, string)
#1 /srv/mediawiki/php-1.28.0-wmf.8/includes/api/ApiMain.php(1373): ApiCentralAuthToken->execute()
#2 /srv/mediawiki/php-1.28.0-wmf.8/includes/api/ApiMain.php(438): ApiMain->executeAction()
#3 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(49): ApiMain->execute()
#4 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(88): EchoForeignWikiRequest->getCentralAuthToken(User)
#5 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(68): EchoForeignWikiRequest->getQueryParams(string)
#6 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(29): EchoForeignWikiRequest->getRequestParams()
#7 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/NotifUser.php(709): EchoForeignWikiRequest->execute()
#8 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/NotifUser.php(740): MWEchoNotifUser->getForeignData()
#9 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/NotifUser.php(487): MWEchoNotifUser->getForeignCount(string)
#10 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/Hooks.php(1150): MWEchoNotifUser->resetNotificationCount()
#11 /srv/mediawiki/php-1.28.0-wmf.8/includes/Hooks.php(195): EchoHooks::onUserSaveSettings(User)
#12 /srv/mediawiki/php-1.28.0-wmf.8/includes/user/User.php(3952): Hooks::run(string, array)
#13 /srv/mediawiki/php-1.28.0-wmf.8/includes/auth/AuthManager.php(1678): User->saveSettings()
#14 /srv/mediawiki/php-1.28.0-wmf.8/includes/Setup.php(861): MediaWiki\Auth\AuthManager->autoCreateUser(User, string, boolean)
```
I'm putting up a troubleshooting patch.
It does happen when there is a central ID (included one more just to show there are multiple entry points).
```
2016-07-12 19:30:15 [V4VFRwpAEDIAALPruqIAAAAD] mw1285 commonswiki 1.28.0-wmf.8 Echo DEBUG: Exception when fetching CentralAuth token: wiki: commonswiki, userName: Laurenthomp, userId: 6018965, centralId: 47181900, exception: badsession: Can only obtain a centralauthtoken when using CentralAuth sessions {"wiki":"commonswiki","userName":"Laurenthomp","userId":6018965,"centralId":47181900}
[Exception UsageException] (/srv/mediawiki/php-1.28.0-wmf.8/includes/api/ApiBase.php:1487) Can only obtain a centralauthtoken when using CentralAuth sessions
#0 /srv/mediawiki/php-1.28.0-wmf.8/extensions/CentralAuth/includes/api/ApiCentralAuthToken.php(51): ApiBase->dieUsage(string, string)
#1 /srv/mediawiki/php-1.28.0-wmf.8/includes/api/ApiMain.php(1373): ApiCentralAuthToken->execute()
#2 /srv/mediawiki/php-1.28.0-wmf.8/includes/api/ApiMain.php(438): ApiMain->executeAction()
#3 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(57): ApiMain->execute()
#4 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(112): EchoForeignWikiRequest->getCentralAuthToken(User)
#5 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(92): EchoForeignWikiRequest->getQueryParams(string)
#6 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(29): EchoForeignWikiRequest->getRequestParams()
#7 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/NotifUser.php(709): EchoForeignWikiRequest->execute()
#8 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/NotifUser.php(740): MWEchoNotifUser->getForeignData()
#9 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/NotifUser.php(487): MWEchoNotifUser->getForeignCount(string)
#10 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/Hooks.php(1150): MWEchoNotifUser->resetNotificationCount()
#11 /srv/mediawiki/php-1.28.0-wmf.8/includes/Hooks.php(195): EchoHooks::onUserSaveSettings(User)
#12 /srv/mediawiki/php-1.28.0-wmf.8/includes/user/User.php(3952): Hooks::run(string, array)
#13 /srv/mediawiki/php-1.28.0-wmf.8/includes/auth/AuthManager.php(1678): User->saveSettings()
#14 /srv/mediawiki/php-1.28.0-wmf.8/includes/Setup.php(861): MediaWiki\Auth\AuthManager->autoCreateUser(User, string, boolean)
#15 /srv/mediawiki/php-1.28.0-wmf.8/includes/WebStart.php(137): include(string)
#16 /srv/mediawiki/php-1.28.0-wmf.8/api.php(38): include(string)
#17 /srv/mediawiki/w/api.php(3): include(string)
#18 {main}
```
```
2016-07-12 19:30:16 [V4VFRwpAEDIAALPruqIAAAAD] mw1285 commonswiki 1.28.0-wmf.8 Echo DEBUG: Exception when fetching CentralAuth token: wiki: commonswiki, userName: Laurenthomp, userId: 6018965, centralId: 47181900, exception: badsession: Can only obtain a centralauthtoken when using CentralAuth sessions {"wiki":"commonswiki","userName":"Laurenthomp","userId":6018965,"centralId":47181900}
[Exception UsageException] (/srv/mediawiki/php-1.28.0-wmf.8/includes/api/ApiBase.php:1487) Can only obtain a centralauthtoken when using CentralAuth sessions
#0 /srv/mediawiki/php-1.28.0-wmf.8/extensions/CentralAuth/includes/api/ApiCentralAuthToken.php(51): ApiBase->dieUsage(string, string)
#1 /srv/mediawiki/php-1.28.0-wmf.8/includes/api/ApiMain.php(1373): ApiCentralAuthToken->execute()
#2 /srv/mediawiki/php-1.28.0-wmf.8/includes/api/ApiMain.php(438): ApiMain->executeAction()
#3 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(57): ApiMain->execute()
#4 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(112): EchoForeignWikiRequest->getCentralAuthToken(User)
#5 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(92): EchoForeignWikiRequest->getQueryParams(string)
#6 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/ForeignWikiRequest.php(29): EchoForeignWikiRequest->getRequestParams()
#7 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/NotifUser.php(709): EchoForeignWikiRequest->execute()
#8 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/NotifUser.php(740): MWEchoNotifUser->getForeignData()
#9 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/NotifUser.php(487): MWEchoNotifUser->getForeignCount(string)
#10 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/model/Notification.php(161): MWEchoNotifUser->resetNotificationCount(integer)
#11 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/mapper/NotificationMapper.php(61): Closure$EchoNotification::insert#2()
#12 /srv/mediawiki/php-1.28.0-wmf.8/includes/db/Database.php(2482): Closure$EchoNotificationMapper::insert()
#13 /srv/mediawiki/php-1.28.0-wmf.8/includes/db/Database.php(2454): DatabaseBase->runOnTransactionIdleCallbacks()
#14 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/mapper/NotificationMapper.php(64): DatabaseBase->onTransactionIdle(Closure$EchoNotificationMapper::insert;1964115705)
#15 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/model/Notification.php(165): EchoNotificationMapper->insert(EchoNotification)
#16 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/model/Notification.php(94): EchoNotification->insert()
#17 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/Notifier.php(21): EchoNotification::create(array)
#18 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/controller/NotificationController.php(277): EchoNotifier::notifyWithNotification(User, EchoEvent)
#19 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/controller/NotificationController.php(104): EchoNotificationController::doNotification(EchoEvent, User, string)
#20 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/model/Event.php(155): EchoNotificationController::notify(EchoEvent, boolean)
#21 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/includes/DiscussionParser.php(72): EchoEvent::create(array)
#22 /srv/mediawiki/php-1.28.0-wmf.8/extensions/Echo/Hooks.php(474): EchoDiscussionParser::generateEventsForRevision(Revision)
#23 /srv/mediawiki/php-1.28.0-wmf.8/includes/deferred/CallableUpdate.php(22): Closure$EchoHooks::onArticleSaved()
#24 /srv/mediawiki/php-1.28.0-wmf.8/includes/deferred/DeferredUpdates.php(159): MWCallableUpdate->doUpdate()
#25 /srv/mediawiki/php-1.28.0-wmf.8/includes/deferred/DeferredUpdates.php(88): DeferredUpdates::execute(array, string)
#26 /srv/mediawiki/php-1.28.0-wmf.8/includes/MediaWiki.php(776): DeferredUpdates::doUpdates(string)
#27 /srv/mediawiki/php-1.28.0-wmf.8/includes/MediaWiki.php(618): MediaWiki->restInPeace(string)
#28 [internal function]: Closure$MediaWiki::doPostOutputShutdown()
#29 {main}
```