It's very weird, but it seems randomly all of my tool windows will disappear and I can't get them to display. Neither the panel button in the bottom left or the menu options in (View -> Tool Windows -> ...) will make them reappear. When I click on the individual tab buttons, they appear to toggle (the background changes color as if the panel is displayed) but the panels never show. I've checked to make sure I don't just have the window size so small it seems like it's not displaying, but that isn't the case either. The only way I know how to get them to display again is to close out of PHPStorm and re-open it.
I recently switched to the default keymap, so it is possible I'm hitting a keyboard shortcut without knowing it. With that said, I couldn't find any keyboard shortcuts which do this.
Any idea what could be causing this? Or what keyboard shortcut I may be hitting and how to reverse it?