criddles

So I've been having the same problem, and I've finally found a workaround! Left-clicking normally on the crew hatch does nothing, however, if I bring up the science report window (the one where you decide whether to transmit or save) and position the text part of the window over top of the crew hatch, and then left-click, the window that shows which kerbals are there pops up and I can EVA. What a strange bug, I'm guessing it may have something to do with certain mods being installed that mess with the GUI maybe?