@mumsnet
Whenever I use the @ function it brings up a handy list of names on the thread, so I can pick the right one.
However it then saves it in some sort of memory, so it shows on a different thread (where that particular username isn't present).
This is quite confusing and so is quite like to delete it if possible, so it can be fresh on each thread rather than remember every username I've ever quoted.
I'm using the app, on iPhone 7, if that helps.