Hi, i have pay my 14$ plan to continue using Brain Max claude opus 4 acess, because i had already far in a process. but at soon i have made the payment, something strange start happening... i start one conversarion with cluade for example, and if i logout, click to the coversation that i want, it will have the Brain sign in the model(not the one i started with) and not allowing me to change back to claude, gemini our chatgpt, and the thinking phase/icon change to Brain instead of claude and so the flow of the conversation, and the button does not allow me to change back to the previous model that i started.