Share file with desktop client on Nextcloud 18 both mac and Windows client no email to recipient

Hi,

I have four installations on fore different customers running different version of Nextcloud, the latest is running 18.0.3.
When users shares files through the web site an email is sent to the shared recipient.

But if the user shares the file through the desktop client, both on MacOS and Windows 10 running 2.6.4 och the iOS app, no email is sent from the server.
The file gets shared, I can see that if I log in to the web and look at the file. Then it is shared with the named recipient.
Messages in the nextcloud.log says:
{“reqId”:“8YSfxQ0oBIL5fGjZiaPl”,“level”:0,“time”:“2020-04-17T11:20:39+00:00”,“remoteAddr”:“192.168.25.91”,“user”:“69935F3A-4061-4D4B-97E1-859F3E3A7201”,“app”:“workflowengine”,“method”:“GET”,“url”:"/ocs/v2.php/apps/files_sharing/api/v1/shares?path=%2FDocuments%2Fblog.bjorknet.com%2Fhtaccess_Backup_for_blog.bjorknet.com.txt&reshares=true&format=json",“message”:“Flow activation: rules were requested for operation Blockera Request for a file”,“userAgent”:“Mozilla/5.0 (Macintosh) mirall/2.6.4stable (build 20200303) (Nextcloud)”,“version”:“18.0.3.0”}
{“reqId”:“8YSfxQ0oBIL5fGjZiaPl”,“level”:0,“time”:“2020-04-17T11:20:39+00:00”,“remoteAddr”:“192.168.25.91”,“user”:“69935F3A-4061-4D4B-97E1-859F3E3A7201”,“app”:“workflowengine”,“method”:“GET”,“url”:"/ocs/v2.php/apps/files_sharing/api/v1/shares?path=%2FDocuments%2Fblog.bjorknet.com%2Fhtaccess_Backup_for_blog.bjorknet.com.txt&reshares=true&format=json",“message”:“No flow configurations is going to run Blockera Request for a file”,“userAgent”:“Mozilla/5.0 (Macintosh) mirall/2.6.4stable (build 20200303) (Nextcloud)”,“version”:“18.0.3.0”}
{“reqId”:“8YSfxQ0oBIL5fGjZiaPl”,“level”:0,“time”:“2020-04-17T11:20:39+00:00”,“remoteAddr”:“192.168.25.91”,“user”:“69935F3A-4061-4D4B-97E1-859F3E3A7201”,“app”:“workflowengine”,“method”:“GET”,“url”:"/ocs/v2.php/apps/files_sharing/api/v1/shares?path=%2FDocuments%2Fblog.bjorknet.com%2Fhtaccess_Backup_for_blog.bjorknet.com.txt&reshares=true&format=json",“message”:“Flow activation: rules were requested for operation Blockera Request for a file”,“userAgent”:“Mozilla/5.0 (Macintosh) mirall/2.6.4stable (build 20200303) (Nextcloud)”,“version”:“18.0.3.0”}
{“reqId”:“8YSfxQ0oBIL5fGjZiaPl”,“level”:0,“time”:“2020-04-17T11:20:39+00:00”,“remoteAddr”:“192.168.25.91”,“user”:“69935F3A-4061-4D4B-97E1-859F3E3A7201”,“app”:“workflowengine”,“method”:“GET”,“url”:"/ocs/v2.php/apps/files_sharing/api/v1/shares?path=%2FDocuments%2Fblog.bjorknet.com%2Fhtaccess_Backup_for_blog.bjorknet.com.txt&reshares=true&format=json",“message”:“No flow configurations is going to run Blockera Request for a file”,“userAgent”:“Mozilla/5.0 (Macintosh) mirall/2.6.4stable (build 20200303) (Nextcloud)”,“version”:“18.0.3.0”}
{“reqId”:“8YSfxQ0oBIL5fGjZiaPl”,“level”:0,“time”:“2020-04-17T11:20:39+00:00”,“remoteAddr”:“192.168.25.91”,“user”:“69935F3A-4061-4D4B-97E1-859F3E3A7201”,“app”:“workflowengine”,“method”:“GET”,“url”:"/ocs/v2.php/apps/files_sharing/api/v1/shares?path=%2FDocuments%2Fblog.bjorknet.com%2Fhtaccess_Backup_for_blog.bjorknet.com.txt&reshares=true&format=json",“message”:“Flow activation: rules were requested for operation Blockera Request for a file”,“userAgent”:“Mozilla/5.0 (Macintosh) mirall/2.6.4stable (build 20200303) (Nextcloud)”,“version”:“18.0.3.0”}
{“reqId”:“8YSfxQ0oBIL5fGjZiaPl”,“level”:0,“time”:“2020-04-17T11:20:39+00:00”,“remoteAddr”:“192.168.25.91”,“user”:“69935F3A-4061-4D4B-97E1-859F3E3A7201”,“app”:“workflowengine”,“method”:“GET”,“url”:"/ocs/v2.php/apps/files_sharing/api/v1/shares?path=%2FDocuments%2Fblog.bjorknet.com%2Fhtaccess_Backup_for_blog.bjorknet.com.txt&reshares=true&format=json",“message”:“No flow configurations is going to run Blockera \uRequest for a file”,“userAgent”:“Mozilla/5.0 (Macintosh) mirall/2.6.4stable (build 20200303) (Nextcloud)”,“version”:“18.0.3.0”}
{“reqId”:“aLEB7pVFL1pLp64FP0zm”,“level”:0,“time”:“2020-04-17T11:20:39+00:00”,“remoteAddr”:“192.168.25.91”,“user”:“69935F3A-4061-4D4B-97E1-859F3E3A7201”,“app”:“no app in context”,“method”:“GET”,“url”:"/ocs/v2.php/core/navigation/apps?absolute=true&format=json",“message”:“Deprecated event type for OCA\User_LDAP\User\User::postLDAPBackendAdded: null”,“userAgent”:“Mozilla/5.0 (Macintosh) mirall/2.6.4stable (build 20200303) (Nextcloud)”,“version”:“18.0.3.0”}

Anyone having the same problem? I’ve tried finding anything googling this but nothing.