I think I'm narrowing down on the source of the issue. I'm seeing crashes in ibus-engine-mozc as part of package ibus-mozc After building from source and installing debug symbols the key parts of the stack trace appears to be as follows
#10 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::assign<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, void>(__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, __gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >)Python Exception <class 'gdb.error'> value has been optimised out: Python Exception <class 'gdb.error'> value has been optimised out: (__last=, __first=, this=0x7ffc45391578) at /usr/include/c++/10/bits/basic_string.h:1471 #11 mozc::ibus::(anonymous namespace)::GetSurroundingText(_IBusEngine*, mozc::ibus::SelectionMonitorInterface*, mozc::ibus::(anonymous namespace)::SurroundingTextInfo*) [clone .part.0] [clone .constprop.0] (engine=<optimised out>, selection_monitor=<optimised out>, info=0x7ffc45391530) at ../../unix/ibus/mozc_engine.cc:207 #12 0x000056510ef5e7c8 in mozc::ibus::(anonymous namespace)::GetSurroundingText (info=0x7ffc45391530, selection_monitor=<optimised out>, engine=0x56510fc2c410) at ../../unix/ibus/mozc_engine.cc:170 #13 mozc::ibus::MozcEngine::ProcessKeyEvent(_IBusEngine*, unsigned int, unsigned int, unsigned int) (this=<optimised out>, engine=<optimised out>, keyval=<optimised out>, keycode=<optimised out>, modifiers=<optimised out>) at ../../unix/ibus/mozc_engine.cc:377 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1931554 Title: Japanese hiragana input fails after first keypress in anki To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/anki/+bug/1931554/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs