Highly unlikely for Aphants to misremember/make up an incident that never actually happened?
My husband has a strong mind's eye. I have absolutely zero - no flashes, no words, no nothing.
I'm not saying I have a great memory. Far from it since I can't visualise a scene or whatever. But I've noticed he might get something as big as the location of an event wrong, or who we were with. I remember, not because I SEE it in my mind, but because I remember the atmosphere, worries, thoughts, feelings from those moments.
On whether an incident actually took place or not:
There have been times where we argue about whether something actually happened, for example, him repositioning a picture frame the night before. He swears that he never did it. I cannot visualise it but I remember him doing it. I know for sure it is more likely that he forgot it happened than it is for me to totally make up (and believe!) something that didn't happen at all!