Problem with shared groupfolder

Nextcloud version: 12.0.4
Operating system and version: CentOS Linux 7.4.1708
Apache or nginx version: nginx/1.10.2
PHP version: 7.0.24
Is this the first time you’ve seen this error?: no
Can you reliably replicate it?: yes replicate many times
I shared a group folder to another user
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And then user create folder or file in that folder. Nothing happens but in linux console i can see this new folder.
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Thanks

UP promlem is not decided

Seeing this same issue. I have a group folder shared with a design team and i’m trying to share out a sub folder to another group which works but they can’t make any new folders or files within this folder. Log is showing this error:

Error: Call to a member function getPath() on null
/var/www/nextcloud/lib/private/Share20/ShareHelper.php - line 51: OC\Share20\Manager->getAccessList(NULL, true, true)
/var/www/nextcloud/apps/activity/lib/FilesHooks.php - line 616: OC\Share20\ShareHelper->getPathsForAccessList(Object(OC\Files\Node\Folder))
/var/www/nextcloud/apps/activity/lib/FilesHooks.php - line 196: OCA\Activity\FilesHooks->getUserPathsFromPath(’/Video Advertis…’, ‘dpait’)
/var/www/nextcloud/apps/activity/lib/FilesHooks.php - line 146: OCA\Activity\FilesHooks->addNotificationsForFileAction(’/Video Advertis…’, ‘file_created’, ‘created_self’, ‘created_by’)
/var/www/nextcloud/apps/activity/lib/FilesHooksStatic.php - line 47: OCA\Activity\FilesHooks->fileCreate(’/Dealer Videos/…’)
/var/www/nextcloud/lib/private/legacy/hook.php - line 106: OCA\Activity\FilesHooksStatic fileCreate(Array)
/var/www/nextcloud/lib/private/Files/View.php - line 1269: OC_Hook emit(‘OC_Filesystem’, ‘post_create’, Array)
/var/www/nextcloud/lib/private/Files/View.php - line 1197: OC\Files\View->runHooks(Array, ‘/Dealer Videos/…’, true)
/var/www/nextcloud/lib/private/Files/View.php - line 269: OC\Files\View->basicOperation(‘mkdir’, ‘/Dealer Videos/…’, Array)
/var/www/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php - line 180: OC\Files\View->mkdir(’/Dealer Videos/…’)
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 1210: OCA\DAV\Connector\Sabre\Directory->createDirectory(‘Temporary’)
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php - line 590: Sabre\DAV\Server->createCollection(‘Dealer Videos/T…’, Object(Sabre\DAV\MkCol))
[internal function] Sabre\DAV\CorePlugin->httpMkcol(Object(Sabre\HTTP\Request), Object(Sabre\HTTP\Response))
/var/www/nextcloud/3rdparty/sabre/event/lib/EventEmitterTrait.php - line 105: call_user_func_array(Array, Array)
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 479: Sabre\Event\EventEmitter->emit(‘method MKCOL’, Array)
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 254: Sabre\DAV\Server->invokeMethod(Object(Sabre\HTTP\Request), Object(Sabre\HTTP\Response))
/var/www/nextcloud/apps/dav/appinfo/v1/webdav.php - line 76: Sabre\DAV\Server->exec()
/var/www/nextcloud/remote.php - line 162: require_once(’/var/www/nextcl…’)
{main}