Aaron

https://dump.viaversion.com/39e52d2cba9f963b4ccf0a0e2c29ba08dc0ee32907357b6d60b956ddbcc756c6

Could not reproduce on latest versions.

If you set the gamemode to -1 it will not be sent

Could you give more details like client version, show your code and where it is executed. Then I could make a deeper look

Oh yes, because you delete all entries beforehand and no game mode is sent along, it automatically takes game mode ``0``. So I have two options here that should work....