Hello @GEDOH, did you regularly check the decay timers on your base with a repair hammer?
Even though the maximum threshold for the decay timer is about 1 week, not all bases reach that value as it depends on the quantity and tier of all connected building pieces.
We’d recommend placing everything over several foundations that are connected to each other so that everything shares the same decay timer bonus, including altars and animal pens, and to check out the following video for further information on this system: