Chat 1.16 unviewable side pane

Submitted Bug 113

Core 1.8.13 with Chat Zimlet 1.13 works as expected ie Zimlet can be expanded to right side of screen and then back to the bottom.

After update to 1.16 Zimlet can be extended to right side of screen but it no longer shows contacts, it's grey, and it's not possible to return it to it's original position. Please see attached screenshot.

Undeploying the Chat Zimlet removes the grey bar from the side when when deployed again it "remembers" it's location and the same problem occurs.