Problems with sending queue (one message at a time...)

[duncanc]

@mlanc The problem might be the one described here

Campaign stops after 1 email if language is not englisch

Hello there, phplist stops sending further emails after 1 email is sent if the UI language is german. If I change the UI language to english it works perfectly. I changed the UI language in the bottom left after the login. [Sprache] What parameter could cause this behaviour? How do I fix it?