Inbox is achived to trash

[Meteor0id]

I have been at it for days but I can't figure out why my inbox is getting archived to trash.

I am running 1.0.0.7 and am also syncing the following special folders:
trash, junk, outbox, draft, template (but not archive folders)

For Local Folders I have everything disable.

Under my IMAP account settings message archiving I have set the folder 'archive' to "Local folders"

So what's happening is

myimapaccound -> Send
is getting archived to
Local Folders -> archives -> send

Myimapaccount -> inbox
is getting archived to
Local Folders -> trash

Myimapaccount -> inbox -> newsletters
is getting archived to
Local Folders -> archives -> newsletters

---

so even a subfolder of inbox is getting archived the right way, but the general inbox itself is ending up in trash, outside the archive folder but inside the local folders.

I want everything in local folders so that I can configure to delete everything from the server after 100 days (for security if the server or any device syncing with it is ever compromised, it's limited to a 100 days while my local archive has everything in it.

Any ideas what might be going on?

[Brummolix]

Very strange.

What happens if you archive a single message from the inbox folder with the normal Thunderbird action (right click on a message, choose "archive")? Is it also archived to the trash folder?
If yes, we know at least that it is not a problem of the addon but more a problem of Thunderbird itself.

Maybe something is wrong with the folder types?
You may check them with the addon https://addons.thunderbird.net/en-US/thunderbird/addon/folderflags/

You may also try to repair the folders (right click on the folder, properties, repair button)

[Meteor0id]

Again been at this for days, the archiving option does nothing, no matter how I configure archiving, een after checking the flags and repairing all folders.

I may have to uninstall the add-on to make sure there is no conflict of some sort.
I really don't get what's going here but it sure seems very broken.