Ctrl+Click+Drag doesn't resize windows

[merkvah]

at least, it fails when I try.

[Henrique Oliveira Machado]

at least, it fails when I try.

I also had this issue but wasn't able to reproduce it. It seems something very specific that causes the issue.

[Zacchaeus]

It should, make sure your pointer is over the map and not the toolbar on the right.