Duel Screen support when using the lock feature

[JeremyT]

Hi all
We are using Veyon in a school computer lab scenario, all the student computers use duel screens. When you lock the student computers from the master, Veyon only locks their primary monitor, they still have full function of all apps, windows, browsers that are active on their second screen. (secondary monitor)
Has anyone else found this? Solution? Definitely need to lock both their screens!

Thanks
Jeremy