Why is ChatGPT Pro temporarily limited on my account?

Same situation here. I upgrade to Pro Lite and after 1-2 days of regular but normal usage, I find this hidden limit. I explicitly checked beforehand with GPT-5.5 and reading the help pages to make sure this was not the case. It’s another disgraceful policy, in the line of lack of transparency and candour of its CEO. They should change their name to ClosedAI.