bedrock server crashing in libCrypto

Just installed bedrock-server-1.12.0.28 to accommodate a client-side upgrade on my iphone.  I get this walkback when the phone tries to connect:

(gdb) where
#0 0x00007ffff794b78b in Crypto::Symmetric::Symmetric::decrypt(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) ()
from /home/ubuntu/new-server/libCrypto.so
#1 0x000055555a772d3b in EncryptedNetworkPeer::receivePacket(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) ()
#2 0x000055555a76d69f in CompressedNetworkPeer::receivePacket(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) ()
#3 0x000055555a767ffe in BatchedNetworkPeer::receivePacket(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) ()
#4 0x00005555590b8f42 in NetworkHandler::Connection::receivePacket(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) ()
#5 0x00005555590b94c6 in NetworkHandler::_sortAndPacketizeEvents(NetworkHandler::Connection&, std::chrono::time_point<std::chrono::_V2::system_clock, std::chrono::duration<l
ong, std::ratio<1l, 1000000000l> > >) ()
#6 0x00005555590b89d7 in ?? ()
#7 0x00005555590b8674 in NetworkHandler::runEvents(bool) ()
#8 0x00005555595219fc in Minecraft::update() ()
#9 0x000055555935a1da in ServerInstance::_update() ()
#10 0x000055555935be64 in ?? ()
#11 0x000055555935bbbd in ?? ()
#12 0x000055555935bb4d in ?? ()
#13 0x000055555935bb25 in ?? ()
#14 0x000055555935baf5 in ?? ()
#15 0x000055555935b9e9 in ?? ()
#16 0x00007ffff6b5a66f in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#17 0x00007ffff77136db in start_thread (arg=0x7fffe9be5700) at pthread_create.c:463
#18 0x00007ffff621788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95