Working with BEDIT - Objects seem to be locked in place

Good afternoon,

I'm currently struggling to get my head around why exactly, when trying to combine blocks within Visiblity States of BEDIT, some elements (in this case a single leader) will not move with the MOVE command but do move when you Click+Drag the selected object.

I have no layers locked, and as far as I can tell the red leader arrows are identical to its counterparts within this block.

Is there some hidden function I don't know of that removes any 'connections' to other parts of the drawing? I am racking my brain but cannot find a way to keep it all together.

I even tried grouping, but the menu looks greyed-out without options to group elements.

I'm really hoping its something simple, but from my experience working with blocks can be anything but. Perhaps the gurus of this forum will have some words of wisdom for me.

Many thanks folks