Spam still not deleting properly from List view

Runbox 7 Runbox 7 Webmail
#1

I’m using Runbox 7 within Slimjet v. 23.0.9.0 (based on Chromium 74.0.3729.108) (Official Build) (32-bit), on Windows 7 Pro SP1, 64 bit.

This problem has been going on for a long time: When I try to mark an email as Spam from the list, it doesn’t delete, and I get an error message. From within the message pane itself, it gets marked as Spam just fine.

Thanks.
D.

#2

So just to be clear, the message does move to Spam, but also remains in the original folder? What does the error message say please? If I’ve misunderstood by what you mean by:

… let me know as I’ve taken that to mean a copy does go to the Spam folder.