(lldb) bt
* thread #12, name = 'b-scheduler', stop reason = signal SIGSEGV: invalid address (fault address: 0x78)
  * frame #0: 0x00005555557cf3c9 bitcoin-qt`CBlockIndex::GetBlockTime(this=0x0000000000000000) const at chain.h:262:25
    frame #1: 0x000055555586b9c6 bitcoin-qt`(anonymous namespace)::PeerManagerImpl::CanDirectFetch(this=0x00007fffdcaf03b0) const at net_processing.cpp:793:56
    frame #2: 0x0000555555888d9c bitcoin-qt`(anonymous namespace)::PeerManagerImpl::CheckForStaleTipAndEvictPeers(this=0x00007fffdcaf03b0) const at net_processing.cpp:4098:51
    frame #3: 0x000055555586f4ea bitcoin-qt`operator(__closure=0x00007fffd8ff8a40) at net_processing.cpp:1294:73
    frame #4: 0x000055555589bbd1 bitcoin-qt`std::_Function_handler<void(), (anonymous namespace)::PeerManagerImpl::PeerManagerImpl(const CChainParams&, CConnman&, CAddrMan&, BanMan*, CScheduler&, ChainstateManager&, CTxMemPool&, bool)::<lambda()> >::_M_invoke(__functor=0x00007fffd8ff8a40) at std_function.h:300:37
    frame #5: 0x000055555567da9b bitcoin-qt`std::function<void ()>::operator(this=0x00007fffd8ff8a40)() const at std_function.h:688:14
    frame #6: 0x0000555555ff6612 bitcoin-qt`::Repeat(s=0x0000555556d9ac70, f=Function @ 0x00007fffd8ff8a40, delta=(__r = 45000)) at scheduler.cpp:105:6
    frame #7: 0x0000555555ff6727 bitcoin-qt`operator(__closure=0x00007fffb4000f20) at scheduler.cpp:111:33
    frame #8: 0x0000555555ff7478 bitcoin-qt`std::_Function_handler<void(), CScheduler::scheduleEvery(CScheduler::Function, std::chrono::milliseconds)::<lambda()> >::_M_invoke(__functor=0x00007fffd8ff8b30) at std_function.h:300:37
    frame #9: 0x000055555567da9b bitcoin-qt`std::function<void ()>::operator(this=0x00007fffd8ff8b30)() const at std_function.h:688:14
    frame #10: 0x0000555555ff60a7 bitcoin-qt`CScheduler::serviceQueue(this=0x0000555556d9ac70) at scheduler.cpp:61:18
    frame #11: 0x00005555557bd432 bitcoin-qt`operator(__closure=0x00007fffd8ff8c10) at init.cpp:1117:117
    frame #12: 0x00005555557c8007 bitcoin-qt`::TraceThread<AppInitMain(NodeContext&, interfaces::BlockAndHeaderTipInfo*)::<lambda()>::<lambda()> >(name="scheduler", func=<lambda()> @ 0x00007fffd8ff8c10)>) at system.h:490:13
    frame #13: 0x00005555557bd47b bitcoin-qt`operator(__closure=0x00007fffdc045e08) at init.cpp:1117:69
    frame #14: 0x00005555557ccce9 bitcoin-qt`std::__invoke_impl<void, AppInitMain(NodeContext&, interfaces::BlockAndHeaderTipInfo*)::<lambda()> >((null)=__invoke_other @ 0x00007fffd8ff8d3f, __f=0x00007fffdc045e08)> &&) at invoke.h:60:36
    frame #15: 0x00005555557cca4b bitcoin-qt`std::__invoke<AppInitMain(NodeContext&, interfaces::BlockAndHeaderTipInfo*)::<lambda()> >(__fn=0x00007fffdc045e08)> &&) at invoke.h:95:40
    frame #16: 0x00005555557cc80b bitcoin-qt`std::thread::_Invoker<std::tuple<AppInitMain(NodeContext&, interfaces::BlockAndHeaderTipInfo*)::<lambda()> > >::_M_invoke<0>(this=0x00007fffdc045e08, (null)=_Index_tuple<0> @ 0x00007fffd8ff8d97) const at thread:244:26
    frame #17: 0x00005555557cc731 bitcoin-qt`std::thread::_Invoker<std::tuple<AppInitMain(NodeContext&, interfaces::BlockAndHeaderTipInfo*)::<lambda()> > >::operator(this=0x00007fffdc045e08)() const at thread:251:31
    frame #18: 0x00005555557cc6b5 bitcoin-qt`std::thread::_State_impl<std::thread::_Invoker<std::tuple<AppInitMain(NodeContext&, interfaces::BlockAndHeaderTipInfo*)::<lambda()> > > >::_M_run(this=0x00007fffdc045e00) const at thread:195:13
    frame #19: 0x00007ffff68bcd84 libstdc++.so.6`___lldb_unnamed_symbol587$$libstdc++.so.6 + 20
    frame #20: 0x00007ffff6660609 libpthread.so.0`start_thread(arg=<unavailable>) at pthread_create.c:477:8
    frame #21: 0x00007ffff6587293 libc.so.6`clone + 67