It is a red flag to me too.

If you have working vision, the brain is doing a ton of post-processing that you're unaware of. The eyes are part of the brain, after all. Closing them with your eyelids doesn't magically turn off those post-processing circuits that do most of the heavy lifting.

There is a full visual memory, just not any sense of an image or sound nor smell in my case. I am very sure there is a difference after interrrogating multiple people about it.