OK, as usual, the moment you ask you "solve".
The problem lies in the Touch UI mode.
Under chrome://flags/ disable Touch Optimised UI
and it's "fixed". Well, it's a workaround until they fix the Touch Optimised UI
bug, at least :)
Others with the same problem (and where I got the answer): https://productforums.google.com/forum/#!topic/chrome/Fdt2SLpuZxE