A1200NG Running Workbench 3.1 Issues - Keymaps trashed in CLI

[F0LLETT]

I have set up a Workbench 3.1 app on the A1200NG. It installed fine, to a HDF file I created with WinUAE.
It runs fine and seems stable, but when I load a floppy disk (ADF file), the shell characters are messed up like a new keymap has been loaded.
Everything is fine until I load a ADF file. It doesn't seem to matter which ADF I load.
I have tried several WB versions and every setting I could think of....
Help!

What ROM you using?