Tool palette importing issue

JoshLPL
JoshLPL
in 2D Drafting

Hi, I've just updated to V20 and imported my tool palettes.
I'm having issues with view option, I'd like to change to list view for my imported palettes but I'm getting this error message (see attached)
Seems to work with the standard Bricscad palettes but doesn't change mine. Worked perfectly with V19..
Anyone have a similar issue or know how I could fix it?

Thanks,
Josh