Good morning !
This update concerns an important correction on save files, on an issue that occurred since UE5, the game engine's packaging system was packaging the game in development mode, instead of shipping mode, despite a shipping configuration, and therefore storing save files inside game files, which could cause damage to player saves when the game updates. The problem came from the engine, so was not my responsibility, the problem being corrected, the packaging system behaves normally again. Which means that they are stored again in the USER file and can no longer be damaged, the saves may have been rebooted, or the starting base may not appear for those who played the game during the appearance of the problem, simply restart a new island in your pause menu and the problem will correct itself!