same here… I guess GPTs are totally useless without access to custom knowledge base… What more it seems it do not read “Instructions” field neither. In my case it reads it sometimes and sometimes not, just like with “knowledge” base. I’ve tried to “feed” it with my custom informations and instruction via “GPT builder” just copy-pasting it and instructed GPT builder to add to GPT “memory”. It told me these informations were added and will be available anytime I will use this GPT… But that wasn’t true. Informations I provided were available only during current chat session. After closing it and reopening later all were gone…