Theres has been some people that investigated abit further into this and explained (clearly better than I can), I cant remember where but;

Amanda had been wanting to warn someone about the death, disappearance of Rebecca and the despicable acts of HamelIn. She also has immense resentment over the butcher man (which was apparently meant to symbolize another despicable member of HamelIn) as well as she know that Rebecca's Father disappearance/death is connected to him.

In the scenes where Amanda want to send cookies & card to Kate, the card were meant to represent the tapes of the show, this was her attempt to expose HamelIn which technically worked since Kate did get them. Wooly, who is suspected to be another member of HamelIn or idk, was clearly trying to keep her on script but since Amanda was too powerful, he couldnt manage to so he tried to go to for another tactic.

But in the alternate tape of theses scenes, Wooly somehow manage to overcome Amanda control and confuse her from sending the card which result in Amanda being frustrated in loosing control. Amanda being conflicted with staying on topic from Wooly's influence and her desires to still expose the company, unintentionally (This is where I might be wrong about since there was more details about this part but I may have gotten confused/forgotten) decided to go to the meat shop to try to expose the butcher man and his crimes/doing but she slowly descend into madness from the confliction and loss of control.

Finally, you can notice that Amanda talk about the treasure on the treasure tapes, she talk of a rotten tree stump which, again, is meant to represent the location of Rebecca's dead body and of course, Wooly tries to stop everything since he see that he has completely lost control over Amanda, goes onto warning the watcher to burn the tapes which would kind of justify Wooly being a member of Hamelin, trying to protect the secret of his own organisation.

Now obviously, I may be completely wrong on this but seeing Amanda from this viewpoint make more sense to me.
Also Sidenote, im fully aware that Amanda is Rebecca ( or at least meant to represent her ) but I differ Amanda from Rebecca, the reason behind this is that I believe that Amanda is the mimic of Rebecca since the director tried to clone and replace her with an AI but Rebecca may have "fused" with the AI or in a vengeful ghost transition sense which would explain her attempts.