The reported line is: ./src/wui/buildingwindow.cc:359
which is Widelands::Building* building_in_lambda = building_.get(parent_->egbase()); and my guess is that parent_ has become nullptr for some reason. No idea how to test his - I did not manage to trigger the bug, but maybe somebody else will have more creative ideas. -- https://code.launchpad.net/~widelands-dev/widelands/bug-1807156-heap-use-after-free/+merge/363584 Your team Widelands Developers is requested to review the proposed merge of lp:~widelands-dev/widelands/bug-1807156-heap-use-after-free into lp:widelands. _______________________________________________ Mailing list: https://launchpad.net/~widelands-dev Post to : widelands-dev@lists.launchpad.net Unsubscribe : https://launchpad.net/~widelands-dev More help : https://help.launchpad.net/ListHelp