Items lost when entering again in the world in Multiplayer

I’ve been using the same configuration as ever (1.21.11, same WiFi, same PCs, Windows 11, etc.) and then when playing in Multiplayer using LAN, only sometimes (which is the mystery) the player that is not the host, after leaving the world, when enters again, spawns in the last place he spawned and all items are lost; the host player keeps everything. We noted that it happened more when the non-host disconnects first, but it also happens when the host disconnects first (our provisory solution is to remove all items from the non-host player and keep them in a chest).