I wonder if this is #807 still happening?
@elextr: I have never had such issues at home on my Ubuntu machine.
But at work I often have the issue that geany doesn't seem to react right after the start. But the window title etc. is updated if I click on a document tab. But the active tab is not changing. Then I close and re-start geany and everything is fine. So if this is the problem you mean, then... - it only occurs to me on windows - it only occurs on the first start of geany after booting my PC