Farming Simulator 22 has just undergone a minor update, 1.2.0.2, light (500 MB) which fixes the problem of handling pallets with the Manitou MC 18-4, which tended to fly in the air at the slightest load on the pallet fork. The update also fixes some translation issues and a crash when loading saves with corrupted trees (trees can still be corrupted when cutting, this bug is not fixed yet.)
The update is done automatically for the console and PC Steam versions. The Giants launcher should also take care of the update, but if it is finicky then you will need to grab Farming Simulator 1.2.0.2 (full and up to date) directly on the game site in the "Update" section.