issues with copper golem tracking chests

Copper golem forgets its original copper chest and becomes loyal to another one inside solid blocks that are out of his sight, breaking my sorting sistem. Also, copper golem stops working when overwelmed by numerous out of use range, but inside tracking range, chests. When I hit the golem it seems to update and start working for a while again, placing a new one also works. The copper golem is not able to search 10 chests as promissed, double chests seem to be a issue as well as sorting systems with lots os copper chests and more than 10 wooden chests. Its tracking mecanics just break and stop working, especially when confined to small spaces.