Reattaching Panes in Wayland

[Andreas Hild]

Hello,

I'm struggling to reattach panes, such as Outline, Code Preview, Messages.

I can easily detach them from the main UI, but I'm unable to put them
back in their original place.

I running the following version in Wayland:

LyX Version 2.3.7
Qt Version (run-time): 5.15.8 on platform wayland
Qt Version (compile-time): 5.15.7

Any idea what's going on? Any work around?

Many thanks!
Andy