NWNX Crash due to characters in a NUI Field

[cxevan7]

Getting this error, at first glance it looks like maybe it's related to invalid characters in a NUI field?

terminate called after throwing an instance of 'nlohmann::detail::type_error'
  what():  [json.exception.type_error.316] invalid UTF-8 byte at index 14: 0xFE
 NWNX Signal Handler:
==============================================================
 NWNX 8193.37-13 () has crashed. Fatal error: Program aborted (6).
 Please file a bug at https://github.com/nwnxee/unified/issues
==============================================================
  Backtrace:
    /home/haze/nwnx/Binaries/NWNX_Core.so(_ZN7NWNXLib8Platform13GetStackTraceB5cxx11Eh+0x4a) [0x7f2dbe24620a]
    /home/haze/nwnx/Binaries/NWNX_Core.so(nwnx_signal_handler+0xcf) [0x7f2dbe1f0b7f]
    /lib/x86_64-linux-gnu/libc.so.6(+0x3ef10) [0x7f2dbcea3f10]
    /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7) [0x7f2dbcea3e87]
    /lib/x86_64-linux-gnu/libc.so.6(abort+0x141) [0x7f2dbcea57f1]
    /usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x8c957) [0x7f2dbd898957]
    /usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x92ae6) [0x7f2dbd89eae6]
    /usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x92b21) [0x7f2dbd89eb21]
    /usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x92d54) [0x7f2dbd89ed54]
    ./nwserver-linux(_ZN8nlohmann6detail10serializerINS_10basic_jsonISt3mapSt6vectorNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEblmdSaNS_14adl_serializerES4_IhSaIhEEEEE12dump_escapedERKSA_b+0x870) [0x559ef7afa9f0]
    ./nwserver-linux(_ZN8nlohmann6detail10serializerINS_10basic_jsonISt3mapSt6vectorNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEblmdSaNS_14adl_serializerES4_IhSaIhEEEEE4dumpERKSE_bbjj+0x3d4) [0x559ef7afd404]
    ./nwserver-linux(_ZN8nlohmann6detail10serializerINS_10basic_jsonISt3mapSt6vectorNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEblmdSaNS_14adl_serializerES4_IhSaIhEEEEE4dumpERKSE_bbjj+0x33e) [0x559ef7afd36e]
    ./nwserver-linux(_ZN8nlohmann6detail10serializerINS_10basic_jsonISt3mapSt6vectorNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEblmdSaNS_14adl_serializerES4_IhSaIhEEEEE4dumpERKSE_bbjj+0xb60) [0x559ef7afdb90]
    ./nwserver-linux(_ZN11CNWSMessage28HandlePlayerToServerNuiEventEP10CNWSPlayerh+0x677) [0x559ef7d6f157]
    ./nwserver-linux(_ZN11CNWSMessage27HandlePlayerToServerMessageEjPhj+0x3f1) [0x559ef7d70f51]
    /home/haze/nwnx/Binaries/NWNX_Profiler.so(_ZN8Profiler11NetMessages31HandlePlayerToServerMessageHookEP11CNWSMessagejPhj+0x801) [0x7f2dad13ec51]
    ./nwserver-linux(_ZN21CServerExoAppInternal13HandleMessageEjPhj+0x7b0) [0x559ef7cfd430]
    ./nwserver-linux(_ZN17CNetLayerInternal17UncompressMessageEjPhj+0x19e) [0x559ef799465e]
    ./nwserver-linux(_ZN15CNetLayerWindow23UnpacketizeFullMessagesEi+0x55a) [0x559ef799578a]
    ./nwserver-linux(_ZN17CNetLayerInternal21ProcessReceivedFramesEi+0x4ad) [0x559ef79b21ed]