Server crashes when one specific player tries to join

Server crashes when one player tries to join. We had the affected player try multiple pc reboots and reinstalling Minecraft on his machine to no avail. Server had been restarted and server pc rebooted multiple times as well. 

[INFO] Player connected: T****k, xuid: 2*************0
[INFO] Package: com.mojang.minecraft.dedicatedserver
Version: 1.16.201.2
OS: Windows
Server start: 2021-02-16 15:58:46 Eastern Standard Time
Dmp timestamp: 2021-02-16 22:25:15 Eastern Standard Time
Upload Date: 2021-02-16 22:25:15 Eastern Standard Time
Session ID: 57e527a6-1c2f-47bb-aaa1-3a6ba5126c15
Commit hash: 44f145c13f3d514fcd112c71c1067a1ac638af78
Build id: 5131167
CrashReporter Key: dc967882-ea33-3c48-b918-17bc77476b93

Crash
[INFO] at ClientboundMapItemDataPacket::ClientboundMapItemDataPacket[class gsl::not_null<class MapItemSavedData *>,class Level &] (UnknownFile:?)
at void ServerNetworkHandler::handle[class NetworkIdentifier const &,class MapInfoRequestPacket const &] (UnknownFile:?)
at bool NetworkHandler::_sortAndPacketizeEvents[class NetworkHandler::Connection &,class std::chrono::time_point<struct std::chrono::steady_clock,class std::chrono::duration<__int64,struct std::ratio<1,1000000000> > >] (UnknownFile:?)
at void NetworkHandler::runEvents[bool] (UnknownFile:?)
at void NetworkHandler::runEvents[bool] (UnknownFile:?)
at bool Minecraft::update[void] (UnknownFile:?)
at void ServerInstance::_update[void] (UnknownFile:?)
at void ServerInstance::startServerThread[void] (UnknownFile:?)
at class AllowListEntry * std::_Uninitialized_move<class AllowListEntry *,class AllowListEntry *,class std::allocator<class AllowListEntry> >[class AllowListEntry * const,class AllowListEntry * const,class AllowListEntry *,class std::allocator<class AllowListEntry> &] (UnknownFile:?)
at unsigned int std::_Pad::_Call_func[void *] (UnknownFile:?)
at configthreadlocale (UnknownFile:?)
at BaseThreadInitThunk (UnknownFile:?)
at RtlUserThreadStart (UnknownFile:?)