I'm too affected by this bug and a backtrace shows the crash occurs near im-xim.so, which is the X input method. After clearing the environment variable GTK_IM_MODULE (which was set to xim) the crash disappears, although now my keyboard is badly broken since I heavily rely on XCompose to input all sorts of letters.
** Attachment added: "backtrace.txt" https://bugs.launchpad.net/ubuntu/+source/gnucash/+bug/1802994/+attachment/5244986/+files/backtrace.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1802994 Title: gnucash 3.3 crashes upon keypress in transaction To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnucash/+bug/1802994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs