Jeremie launched an RTTP back to when he was shocked at the drink machine. We know that day had to be explained to him again by Odd, Ulrich and Yumi, but think about it from his point of view.
He was just going to get a drink and then three strangers come up to him and declare they know all about and have been to Lyoko, and Jeremie can’t remember any of it. The proof’s there in the Supercomputer and with Aelita but Jeremie just has this gap in his memory…
And he also discovered the RTTP during that day he erased. So he’d need to find it again, and he’d be so confused as to when these three people discovered Lyoko and this whole thing happened because he didn’t know the Supercomputer could do that sort of thing.
He doesn’t even remember to this day how they met, it had to be explained to him and he had to take the others’ word for it.
Although
【 Blauwesaurus rex 】: ahhh i bet he was like “when did i get all these friends” 【 Blauwesaurus rex 】: and he would be really confused 【 Blauwesaurus rex 】: but i think he’d be too happy to care
