Offline mode causing packet issues?

[Slauh]

I'm not sure if this issue is related to Minecraft data or internal code, but I've noticed that using offline mode affects some packets. Specifically, I encountered a problem with the "start_game" packet. For some reason, it reported the players position of Y-level as 32k, and the parameters for the player position were also about the same as the world spawn, which showed a Y-level of 32k as well. The X and Z coordinates were also very close to the spawn point.

I tested this multiple times while in offline mode, and it consistently returned a Y-level of 32k along with incorrect data. However, when I switched to a relay with the client online, it worked correctly. Once I changed the bot to online mode, everything functioned perfectly, and the player position was accurate.