1.21.10 Problems

[Maxpro131]

It always says "Can't find the server", but connecting still works. Besides that, most things work. But I randomly spawned in the nether, after death I always respawn in the ocean no matter which seed and it seems to intervene with mods. Some commands from mods just don't work anymore. For example:
/maintenance
/geyser extensions
/geyser version

[1ndicle]

When using Cardboard, villagers stop behaving normally. They just stand still and do nothing. They do not take any profession, even if a workstation block such as a composter, lectern or grindstone is placed right next to them. This happens especially with villagers that were cured from being zombies, but also with naturally spawned villagers in villages.

The same world and setup work fine on a pure Fabric server. Villagers there behave normally, walk around and take professions correctly. This problem only appears when Cardboard is installed.