Mystical Agriculture Furnace not usable with hopper or item conduits

[pezubi]

Modpack

FTB Evolution

Modpack version

1.6.0

Launcher

FTB App

Has the pack been modified

No

Log Files

No response

Describe the bug

I tried using the furnace from mystical agriculture to smelt conduit binder.
I then realised, that hoppers and item conduits suck all contents of the furnace our.
For example coal, cobblestone, (clean) stone.

I then tried to use the item conduit on every side (including top and bottom) but couldn't find a way around the issue.
(The picture is an example setup for context)

Steps to reproduce

Setup the furnace
Use hoppper or item conduit
Enjoy :D

Expected behaviour

Only smelted items should be extracted

Screenshots

Additional information

Thanks a lot :)